1801-1850
A
- Aaron Burton Levisee papers, 1847-1992.
- Abbot family. Henry L. Abbot family papers, 1770-2001.
- Abbot, Henry L. Henry L. Abbot family papers, 1770-2001.
- Abraham Lincoln papers, 1774-1948.
- A.D. Bache papers, 1828-1863.
- Adams, Abigail, 1744-1818. Abigail Adams papers.
- Adams, Charles Francis, 1807-1886. Charles Francis Adams papers.
- Adams, Charles Francis, 1835-1915. Charles Francis Adams papers.
- Adams family. Adams family papers, 1776-1948.
- Adams family papers, 1776-1948.
- Adams, Henry, 1838-1918. Henry Adams papers.
- Adams, John, 1735-1826. John Adams papers.
- Adams, John Quincy, 1767-1848. John Quincy Adams papers.
- Adams, Louisa Catherine, 1775-1852. Louisa Catherine Adams papers.
- Adams, Richard, fl. 1793. Richard Adams papers.
- Adams, Samuel, 1722-1803. Samuel Adams papers.
- Adams, Samuel, 1722-1803. Samuel Adams papers, 1635-1826.
- Adee, Alvey A. (Alvey Augustus), 1842-1924. Alvey A. Adee papers.
- Adee, Augustus Alvey, 1802-1844. Augustus Alvey Adee papers.
- Adee, David Graham, 1837-1901. David Graham Adee papers.
- Adee family. Adee family papers, 1824-1966.
- Adee family papers, 1824-1966.
- Aiken family. Pierce-Aiken family papers, 1797-1903.
- Albert James Myer papers, 1816-1880.
- Albert Jeremiah Beveridge collection of John Marshall papers, 1776-1844.
- Alden Partridge papers, 1807-1959.
- Aldrich family. John Aldrich Stephenson collection of the Hand, Fiske, and Aldrich families papers. 1745-1966.
- Aldrich, Morton Arnold, 1874-1956. Morton Arnold Aldrich papers.
- Aldrich, Zoë Worthington Fiske, 1864-1942. Zoë Worthington Fiske Aldrich papers.
- Alex. Brown & Sons. Alex. Brown & Sons records, 1796-1908.
- Alex. Brown & Sons records, 1796-1908.
- Alexander Hamilton papers, 1708-1903.
- Alfred Mordecai papers, 1790-1948.
- Allen, William, 1803-1879. William Allen papers, 1796-1879.
- Amasa J. Parker papers, 1836-1875.
- American Colonization Society. American Colonization Society records, 1792-1964.
- American Colonization Society records, 1792-1964.
- American Institute of Aeronautics and Astronautics. Institute of Aerospace Sciences archives, 1783-1962.
- Amory family. Amory family papers, 1697-1882.
- Amory family papers, 1697-1882.
- Amory, John, 1728-1803. John Amory petition. circa 1783.
- Amory, Thomas, 1682-1728. Thomas Amory papers.
- Amory, Thomas, 1762-1823. Thomas Amory papers.
- Amos Kendall papers, 1835-1909.
- Anderson, Robert, 1805-1871. Robert Anderson papers, 1819-1948.
- Andrew Ellicott papers, 1777-1829.
- Andrew H. Foote papers, 1822-1890.
- Andrew Jackson Donelson papers, 1779-1943.
- Andrew Jackson papers, 1775-1874.
- Andrew Stevenson and J.W. Stevenson papers, 1756-1882.
- Anna Maria Brodeau Thornton papers, 1793-1861.
- Anson Burlingame and Edward L. Burlingame family papers, 1810-1922.
- Anthony, Mary S. Mary S. Anthony papers.
- Anthony, Susan B. (Susan Brownell), 1820-1906. Susan B. Anthony papers, 1846-1934.
- Archivo Nacional de Cuba. Archivo Nacional de Cuba collection pertaining to Spanish colonial rule in Louisiana and the Floridas, 1770-1911.
- Archivo Nacional de Cuba collection pertaining to Spanish colonial rule in Louisiana and the Floridas, 1770-1911.
- Argenteau family. Mercy-Argenteau family papers, 1410-1921.
- Armand Hammer papers, circa 1508-1989.
- Armes, Ethel, 1876-1945. Ethel Armes collection of Lee family papers, 1671-1936.
- Arthur family. Charles Pinkerton collection of Arthur and Herndon family papers, 1822-1938.
- Asa Gray papers, 1840-1859.
- Aury, Luis. Luis Aury papers, 1801-1911.
- Austin, James Trecothick, 1784-1870. James Trecothick Austin papers.
B
- Bache, A. D. (Alexander Dallas), 1806-1867. A.D. Bache papers, 1828-1863.
- Baird, Samuel J. (Samuel John), 1817-1893. Samuel J. Baird papers, 1834-1892.
- Baldorioty de Castro, Román, 1822-1889. Román Baldorioty de Castro papers.
- Baltimore Insurance Company. Baltimore Insurance Company records.
- Bancroft-Bliss families papers, 1788-1928.
- Bancroft, Elizabeth Davis, 1803-1886. Elizabeth Davis Bancroft papers.
- Bancroft family. Bancroft-Bliss families papers, 1788-1928.
- Bancroft, George, 1800-1891. George Bancroft papers.
- Bank of the United States (Baltimore, Md.). Bank of the United States (Baltimore, Md.) records, 1795-1855.
- Bank of the United States (Baltimore, Md.) records, 1795-1855.
- Barbour, Lucian, 1811-1880. Lucian Barbour papers, 1838-1977.
- Bartlett, Ezra, 1770-1848. Ezra Bartlett papers.
- Bartlett family. Josiah Bartlett family papers, 1710-1931.
- Bartlett, Josiah, 1729-1795. Josiah Bartlett family papers, 1710-1931.
- Bartlett, Josiah, 1729-1795. Josiah Bartlett papers.
- Bartlett, Josiah, 1768-1838. Josiah Bartlett papers.
- Bartlett, Josiah, 1803-1853. Josiah Bartlett papers.
- Bartlett, Levi, 1763-1828. Levi Bartlett papers.
- Batchelder, John Davis, 1872-1958. John Davis Batchelder collection of manuscripts, 1537-1944.
- Batchelder, John Davis, 1872-1958. John Davis Batchelder papers. 1910-1944.
- Bates, David Homer, 1843-1926. David Homer Bates papers, 1837-1926.
- Bayard, James A. (James Asheton), 1767-1815. James A. Bayard and Richard H. Bayard papers. 1797-1885.
- Bayard, Richard H. (Richard Henry), 1796-1868. James A. Bayard and Richard H. Bayard papers. 1797-1885.
- Baylies, Francis, 1783-1852. Francis Baylies papers, 1814-1843.
- Beale, Edward Fitzgerald, 1822-1893. Edward Fitzgerald Beale papers.
- Beale family. Beale family papers from the Decatur House, 1794-1957.
- Beale family papers from the Decatur House, 1794-1957.
- Beale, Marie Oge, 1880-1956. Marie Oge Beale diaries.
- Beale, Truxton, 1856-1936. Truxton Beale papers.
- Beatty, Charles, of Georgetown, Md. Charles Beatty account book. 1750-1809.
- Bebb, William, 1802-1873. William Bebb papers, 1705-1849.
- Beckley, Alfred, 1802-1888. Alfred Beckley papers.
- Beckley family. John James Beckley family papers, 1789-1918.
- Beckley, John James, 1757-1807. John James Beckley family papers, 1789-1918.
- Beecher, Henry Ward, 1813-1887. Henry Ward Beecher papers, 1836-1886.
- Benjamin B. French family papers, 1778-1940.
- Benjamin, Calvin, d. 1847. Calvin Benjamin papers, circa 1838-1882.
- Benjamin Lincoln papers, 1778-1806.
- Benjamin Tappan papers, 1795-1900.
- Betances, Ramón Emeterio, 1827-1898. Ramón Emeterio Betances correspondence.
- Beveridge, Albert Jeremiah, 1862-1927. Albert Jeremiah Beveridge collection of John Marshall papers, 1776-1844.
- Bickerdyke, Mary Ann, 1817-1901. Mary Ann Bickerdyke papers, 1847-1905.
- Biddle, Eliza. Eliza Biddle diary. 1814.
- Biddle, Nicholas, 1786-1844. Nicholas Biddle papers, 1681-1933.
- Bing, Julius. Julius Bing writings.
- Birney, James Gillespie, 1792-1857. James Gillespie Birney papers, 1830-circa 1895.
- Birney, William, 1819-1907. William Birney papers.
- Black history collection, 1700-2008.
- Blackwell, Alice Stone, 1857-1950. Alice Stone Blackwell papers.
- Blackwell, Antoinette Louisa Brown, 1825-1921. Antoinette Louisa Brown Blackwell papers.
- Blackwell, Elizabeth, 1821-1910. Elizabeth Blackwell papers.
- Blackwell, Emily, 1826-1910. Emily Blackwell papers.
- Blackwell family. Blackwell family papers, 1759-1960.
- Blackwell family papers, 1759-1960.
- Blackwell, Henry Browne, 1825-1909. Henry Browne Blackwell papers.
- Blackwell, Kitty Barry, 1848-1936. Kitty Barry Blackwell papers.
- Blair & Rives. Blair & Rives records, 1821-1905.
- Blair & Rives records, 1821-1905.
- Blair family. Blair family papers, 1755-1968.
- Blair family papers, 1755-1968.
- Blair, Francis Preston, 1791-1876. Francis Preston Blair papers.
- Blair, Frank P. (Frank Preston), 1821-1875. Frank P. Blair papers.
- Blair, Gist, 1860-1940. Gist Blair papers.
- Blair, Montgomery, 1813-1883. Montgomery Blair papers.
- Blair, Woodbury. Woodbury Blair papers.
- Blennerhassett, Harman, 1765-1831. Harman Blennerhassett papers, 1755-1866.
- Blennerhassett, Harman, 1801-1854. Harman Blennerhassett manuscript volume.
- Bliss, Alexander, 1792-1827. Alexander Bliss papers.
- Bliss, Alexander, d. 1896. Alexander Bliss papers.
- Bliss family. Bancroft-Bliss families papers, 1788-1928.
- Bourne, Sylvanus, 1761-1817. Sylvanus Bourne papers, 1775-1859.
- Bowker, R. R. (Richard Rogers), 1848-1933. R.R. Bowker papers, 1831-1931.
- Bozman family. John Leeds Bozman family papers, 1688-1883.
- Bozman, John Leeds, 1757-1823. John Leeds Bozman family papers, 1688-1883.
- Bradbury collection, 1846-1928.
- Bradbury, William B. (William Batchelder), 1816-1868. William B. Bradbury collection, 1846-1928.
- Bradley, Stephen Row, 1754-1830. Stephen Row Bradley papers.
- Bradley, William Czar, 1782-1867. William Czar Bradley papers.
- Breckinridge, Clifton Rodes, 1846-1932. Clifton Rodes Breckinridge papers.
- Breckinridge, Desha, 1867-1935. Desha Breckinridge papers.
- Breckinridge family. Breckinridge family papers, 1752-1965.
- Breckinridge family papers, 1752-1965.
- Breckinridge, Henry, 1886-1960. Henry Breckinridge papers.
- Breckinridge, John, 1760-1806. John Breckinridge papers.
- Breckinridge, John C. (John Cabell), 1821-1875. John C. Breckinridge papers.
- Breckinridge, Joseph Cabell, 1842-1920. Joseph Cabell Breckinridge papers.
- Breckinridge, Katherine Carson. Katherine Carson Breckinridge papers.
- Breckinridge, Madeline McDowell, 1872-1920. Madeline McDowell Breckinridge papers.
- Breckinridge, Robert J. (Robert Jefferson), 1800-1871. Robert J. Breckinridge papers.
- Breckinridge, Sophonisba Preston, 1866-1948. Sophonisba Preston Breckinridge papers.
- Breckinridge, William Campbell Preston, 1837-1904. William Campbell Preston Breckinridge papers.
- Brodhead, Daniel Dodge. Daniel Dodge Brodhead papers, 1821-1853.
- Bromwell, Henry Pelham Holmes, 1823-1903. Henry Pelham Holmes Bromwell papers, 1794-1929.
- Brooks, Peter Chardon, 1767-1849. Peter Chardon Brooks papers.
- Brown, James, 1766-1835. James Brown papers, 1765-1867.
- Browning, Charles Henry. Charles Henry Browning papers.
- Browning, Eleanor Hanlon, 1809-1857. Eleanor Hanlon Browning papers.
- Browning family. Browning family papers, 1824-1917.
- Browning family papers, 1824-1917.
- Browning, Robert Lewright, 1803-1850. Robert Lewright Browning papers.
- Browning, Robert Lewright, 1835-1860. Robert Lewright Browning papers.
- Bruce, Charles, 1798-1879. Charles Bruce papers.
- Bruce, Elvira, 1788-1858. Elvira Bruce papers.
- Bruce family. Bruce family papers, 1792-1883.
- Bruce family papers, 1792-1883.
- Bruce, James, 1763-1837. James Bruce papers.
- Bryan, W. B. (Wilhelmus Bogart), 1854-1938. W.B. Bryan notes and newspaper extracts, 1789-1888.
- Buchanan, James, 1791-1868. James Buchanan and Harriet Lane Johnston papers, 1825-1887.
- Bucke, Richard Maurice, 1837-1902. Richard Maurice Bucke papers.
- Burbank family. Burbank-Van Voorhis families papers, 1814-1913.
- Burbank, Sidney, 1807-1882. Sidney Burbank diaries. 1839-1880.
- Burbank, Sullivan, 1776-1862. Sullivan Burbank diary. 1814-1823.
- Burbank-Van Voorhis families papers, 1814-1913.
- Burlingame, Anson, 1820-1870. Anson Burlingame and Edward L. Burlingame family papers, 1810-1922.
- Burlingame, Edward L. (Edward Livermore), 1848-1922. Anson Burlingame and Edward L. Burlingame family papers. 1810-1922.
- Burlingame family. Anson Burlingame and Edward L. Burlingame family papers, 1810-1922.
- Burlingame, Jane Cornelia Livermore. Jane Cornelia Livermore Burlingame papers.
- Bush family. Danforth-Bush family collection, 1721-2007.
- Bush, J. Danforth, (Joshua Danforth) 1868-1926. Danforth-Bush family collection. 1721-2007.
- Bush, J. Danforth, (Joshua Danforth) 1868-1926. Danforth-Bush family collection. 1721-2007. Danforth-Bush family collection, 1721-2007.
- Butler, Charles, 1802-1897. Charles Butler papers, 1819-1929.
C
- Cadmus M. Wilcox papers, 1846-1887.
- Cahoone, John. John Cahoone journal. 1829.
- Caleb B. Smith papers, 1841-1862.
- Caleb Cushing papers, circa 1785-1906.
- Caleb Henry Carlton papers, 1831-1954.
- Calvin Benjamin papers, circa 1838-1882.
- Campbell family. Campbell-Preston-Floyd families papers, 1741-1931.
- Campbell-Preston-Floyd families papers, 1741-1931.
- Canberry, Lewis. Lewis Canberry survey notebooks. 1791-1828.
- Carl Brent Swisher collection of research materials relating to Roger B. Taney, 1836-1962.
- Carlton, Caleb Henry, 1836-1923. Caleb Henry Carlton papers, 1831-1954.
- Carnegie Institution of Washington. Carnegie Institution of Washington reproductions collection, 1686-1941.
- Carnegie Institution of Washington reproductions collection, 1686-1941.
- Carroll, Charles, 1702-1782. Charles Carroll papers.
- Carroll, Charles, 1737-1832. Charles Carroll papers.
- Carroll, Daniel, 1764-1849. Daniel Carroll papers, 1662-1920.
- Carroll family. Carroll family papers, 1684-1838.
- Carroll family papers, 1684-1838.
- Carson, Marian S. Marian S. Carson collection of manuscripts, 1656-1995.
- Carter, Lucy Grymes Lee, 1786-1860. Lucy Grymes Lee Carter papers.
- Carter, Robert, 1728-1804. Robert Carter papers, 1685-1828.
- Cass, Lewis, 1782-1866. Lewis Cass papers.
- Cathcart, James L. (James Leander), 1767-1843. James L. Cathcart papers, 1785-1817.
- Caton, John Dean, 1812-1895. John Dean Caton papers, 1826-1947.
- Causten, James H., 1788-1874. James H. Causten papers.
- Causten-Pickett papers, 1765-1916.
- Chamberlain, Joshua Lawrence, 1828-1914. Joshua Lawrence Chamberlain papers, 1775-1913.
- Chardon, Francis A., d. 1848. Journals from Fort Clark, N.D. (1834-1839).
- Charles Butler papers, 1819-1929.
- Charles Henry Harvey papers, 1835-1965.
- Charles O'Neil papers, 1833-1927.
- Charles Pinkerton collection of Arthur and Herndon family papers, 1822-1938.
- Charles Sumner correspondence, 1841-1874.
- Charles Thomson papers, 1765-1888.
- Charles W. Hack papers, circa 1800-1926.
- Charles Wilkes papers, 1607-1959.
- Chase, Cornelius, 1780-1868. Cornelius Chase family papers, 1745-1974.
- Chase, Cornelius Thurston, 1819-1870. Cornelius Thurston Chase papers. 1835-1953.
- Chase family. Cornelius Chase family papers, 1745-1974.
- Chase, Salmon P. (Salmon Portland), 1808-1873. Salmon P. Chase papers, 1755-1898.
- Chaumont, Jacques-Donatien Leray de, 1725-1803. Jacques-Donatien Leray de Chaumont invoice book. 1777-1779.
- Chauncey, Isaac, 1772-1840. Isaac Chauncey journal. 1804.
- Chauncy, Elnathan, 1724-1796. Elnathan Chauncy sermons.
- Christiancy and Pickett families' papers, 1835-1998.
- Christiancy family. Christiancy and Pickett families' papers, 1835-1998.
- Christiancy, Henry Clay, 1841-1925. Henry Clay Christiancy papers.
- Christiancy, James Isaac, 1843-1899. James Isaac Christiancy papers.
- Christopher Prince papers, 1806-1891.
- Clapp, Asa, 1762-1848. Asa Clapp papers.
- Clapp, Asa W. H. (Asa William Henry), 1805-1891. Asa William Henry Clapp papers.
- Clapp, Charles Q., 1799-1868. Charles Q. Clapp papers. (2)
- Clapp family. Clapp family papers, 1789-1935.
- Clapp family papers, 1789-1935.
- Clapp, Mary Jane Emerson, 1835-1922. Mary Jane Emerson Clapp papers.
- Clark, Victor S. (Victor Selden), 1868-1946. Victor S. Clark papers, 1827-1944.
- Clark, William, 1770-1838. Diary excerpt of William Clark (undated).
- Clausing, Ludwig, 1809?-1834. Ludwig Clausing papers.
- Clay family. Henry Clay family papers, 1732-1927.
- Clay, Henry, 1777-1852. Henry Clay family papers, 1732-1927.
- Clay, James B. (James Brown), 1817-1864. James B. Clay papers.
- Clayton, John M. (John Middleton), 1796-1856. John M. Clayton papers, 1798-1868.
- Clinton family. Clinton family papers, 1776-1806.
- Clinton family papers, 1776-1806.
- Clinton, George, 1739-1812. George Clinton papers.
- Clinton, George, 1771-1809. George Clinton papers.
- Clinton, James, 1733-1812. James Clinton papers.
- Coan family. Titus Coan family papers, 1818-1923.
- Coan, Titus, 1801-1882. Titus Coan family papers, 1818-1923.
- Coblentz, Catherine Cate, 1897-1951. Matthew Fontaine Maury biography. 1953.
- Cockburn, George, Sir, 1772-1853. Sir George Cockburn papers, 1788-1847.
- Colfax, Schuyler, 1823-1885. Schuyler Colfax correspondence and speeches, 1837-1882.
- Colhoun, Edmund Ross, 1821-1897. Edmund Ross Colhoun papers, 1821-1918.
- Coll y Toste, Cayetano, 1850-1930. Cayetano Coll y Toste collection relating to Puerto Rico, 1850-1894.
- Confederate States of America. Army. Confederate States of America. Army records. 1860-1865.
- Connor, Jeannette Thurber, d. 1927. Jeannette Thurber Connor collection of Floridiana, 1570-1927.
- Converse, Marion Singleton Deveaux, b. 1815. Marion Singleton Deveaux Converse papers.
- Cook, Ransom. Ransom Cook papers.
- Cooper Curtice papers, 1822-1953.
- Corbin, Hannah Lee, 1728-1782. Hannah Lee Corbin papers.
- Corcoran, Thomas, 1754-1830. Thomas Corcoran correspondence and financial records.
- Corcoran, W. W. (William Wilson), 1798-1888. W.W. Corcoran papers, 1791-1896.
- Cornelius Chase family papers, 1745-1974.
- Count Adam G. de Gurowski papers, 1743-1898.
- Cox, Henry Bartholomew. Henry Bartholomew Cox collection, 1492-1960.
- Crittenden, John J. (John Jordan), 1787-1863. John J. Crittenden papers, 1782-1913.
- Crofoot, Herman K. Herman K. Crofoot collection of Francis Elias Spinner papers. 1792-1908.
- Cruikshank, Robert. Robert Cruikshank daybook and letterbook. 1827-1831.
- Curtice, Cooper, 1856-1939. Cooper Curtice papers, 1822-1953.
- Curtis, William T. S. William T.S. Curtis papers.
- Cushing, Caleb, 1800-1879. Caleb Cushing papers, circa 1785-1906.
- Custis family. Custis-Lee family papers, 1700-circa 1928.
- Custis, George Washington Parke, 1781-1857. George Washington Parke Custis papers.
- Custis-Lee family papers, 1700-circa 1928.
- Cutts family. Key-Cutts-Turner family papers, 1808-1975.
- Cutts, Richard, 1771-1845. Richard Cutts papers.
D
- Dahlgren, John Adolphus Bernard, 1809-1870. John Adolphus Bernard Dahlgren papers, 1794-1889.
- Dale, Richard, 1756-1826. Richard Dale papers, 1778-1918.
- Danforth-Bush family collection, 1721-2007.
- Danforth family. Danforth-Bush family collection, 1721-2007.
- Danforth, Jane Janvier Whilldin, 1797-1870. Jane Janvier Whilldin Danforth papers.
- Danforth, Joshua N. (Joshua Noble), 1798-1861. Joshua N. Danforth papers.
- Daniel Carroll papers, 1662-1920.
- Daniel Dodge Brodhead papers, 1821-1853.
- Daniel Edgar Sickles papers, 1821-1918.
- Daniel Todd Patterson papers, 1772-1927.
- Daniel Webster papers, 1800-1900.
- Davenport, Thomas, 1802-1851. Thomas Davenport correspondence, 1836-1837.
- David Bailie Warden papers, 1800-1840.
- David D. Porter family papers, 1799-1899.
- David Glasgow Farragut papers, 1816-1869.
- David Homer Bates papers, 1837-1926.
- Davis, J. C. Bancroft (John Chandler Bancroft), 1822-1907. J.C. Bancroft Davis papers, 1849-1902.
- De Gurowski, Adam G., count, 1805-1866. Count Adam G. de Gurowski papers, 1743-1898.
- DeButts-Ely collection of Lee family papers, 1749-1914.
- Decatur, Stephen, 1779-1820. Stephen Decatur papers.
- Del Monte, Domingo, 1804-1853. Domingo Del Monte collection of Spanish colonial history, 1500-1871.
- Desha, John R., 1804-1878. Joseph Desha and John R. Desha papers. 1773-1871.
- Desha, Joseph, 1768-1842. Joseph Desha and John R. Desha papers, 1773-1871.
- Desha, Mary, 1850-1911. Mary Desha papers.
- Dessu, Ellen Key Turner, b. 1831. Ellen Key Turner Dessu papers.
- Digges, Thomas Attwood, 1742-1821. Thomas Attwood Digges papers.
- Digges, William Dudley, 1790-1830. William Dudley Digges papers.
- Diggins, E. F. E.F. Diggins plaster bust of Walt Whitman. 1939.
- District of Columbia. Levy Court (Washington County) District of Columbia. Levy Court (Washington County) minutes. 1835-1847.
- Dolley Madison papers, 1794-1852.
- Domingo Del Monte collection of Spanish colonial history, 1500-1871.
- Donelson, Andrew Jackson, 1799-1871. Andrew Jackson Donelson papers, 1779-1943.
- Doolittle, Annette Danforth Bush, d. 1824 Joshua N. Danforth biography. 2007.
- Dorsett, Edward Lee, 1883- Edward Lee Dorsett naval historical collection, 1814-1926.
- Duff Green papers, 1716-1883.
- Dunant, Edward. Edward Dunant papers.
- Duncan Emrich autograph album collection, 1843-1956.
- Duncan McArthur papers, 1783-1848.
- Dunlop family. Dunlop family papers, 1713-1930.
- Dunlop family papers, 1713-1930.
- Dunlop, Francis Key. Francis Key Dunlop papers. 1844.
- Dunlop, James, 1724-1790. James Dunlop papers.
- Dunlop, James, 1755-1824. James Dunlop papers.
- Dunlop, James, b. 1793. James Dunlop papers.
- Dunlop, Robert P., d. 1869. Robert P. Dunlop papers.
- Dunlop, William, fl. 1739. William Dunlop papers. 1847-1858.
- Dupuis-Delcourt, 1802-1864. Tissandier collection on the history of aeronautics. 1539-1929.
E
- Earle, William E. (William Edward), 1841-1894. William E. Earle papers.
- Early, Jubal Anderson, 1816-1894. Jubal Anderson Early papers, 1829-1930.
- East Florida records, 1737-1858.
- E.B. O'Callaghan papers, 1830-1879.
- Ebenezer Foote family papers, 1751-1871.
- Ebenezer Jackson papers, 1784-1873.
- Edgar Stanton Maclay papers, 1782-circa 1918.
- Edmund Physick family papers, 1759-1899.
- Edmund Roberts papers, 1803-1905.
- Edmund Ross Colhoun papers, 1821-1918.
- Edward Frost papers, 1795-1901.
- Edward Lee Dorsett naval historical collection, 1814-1926.
- Edward Maynard papers, 1836-1867.
- Edward Preble papers, 1680-1912.
- Edwards Pierrepont papers, 1847-1900.
- E.G. Squier papers, 1841-1888.
- Elbridge Gerry papers, 1772-1901.
- Eliakim Littell correspondence, 1819-1869.
- Elizabeth Cady Stanton papers, 1814-1946.
- Elizur Wright papers, 1793-1935.
- Ellicott, Andrew, 1754-1820. Andrew Ellicott papers, 1777-1829.
- Ellis & Allan Company records, 1795-1889.
- Ellis & Allan Company (Richmond, Va.). Ellis & Allan Company records, 1795-1889.
- Ellsworth family. Oliver Ellsworth family papers, 1762-1907.
- Ellsworth, Henry William, 1814-1864. Henry William Ellsworth papers, 1796-1886.
- Ellsworth, Oliver, 1745-1807. Oliver Ellsworth family papers, 1762-1907.
- Elmore, F. H. (Franklin Harper), 1799-1850. F.H. Elmore papers, 1795-1858.
- Emrich, Duncan, 1908-1977. Duncan Emrich autograph album collection, 1843-1956.
- Ericsson, John, 1803-1889. John Ericsson papers, 1821-1890.
- Ethan Allen Hitchcock papers, 1793-1888.
- Ethel Armes collection of Lee family papers, 1671-1936.
- Eustis, Benjamin. Benjamin Eustis papers.
- Eustis, Caroline Langdon, 1781-1865. Caroline Langdon Eustis papers.
- Eustis, William, 1753-1825. William Eustis papers, 1757-1908.
- Everett, Alexander Hill, 1790-1847. Alexander Hill Everett papers.
- Ewing family. Thomas Ewing family papers, 1757-1941.
- Ewing, Hugh, 1826-1905. Hugh Ewing papers.
- Ewing, Thomas, 1789-1871. Thomas Ewing family papers, 1757-1941.
- Ewing, Thomas, 1829-1896. Thomas Ewing papers.
- Ewing, Thomas, 1862-1942. Thomas Ewing papers.
F
- Fairfield, John, 1797-1847. John Fairfield correspondence, 1828-1876.
- Falls Bridge Turnpike Company. Falls Bridge Turnpike Company daybooks. 1836-1852.
- Farragut, David Glasgow, 1801-1870. David Glasgow Farragut papers, 1816-1869.
- Feamster family. Feamster family papers. 1794-1967.
- Feamster family papers, 1794-1967.
- Feinberg, Charles E., 1899- Charles E. Feinberg papers.
- Feinberg, Charles E., 1899- Walt Whitman papers in the Charles E. Feinberg collection, 1763-1985.
- Fell, Jesse W., 1808-1887. Jesse W. Fell papers, 1806-1965.
- Felt, Joseph B. (Joseph Barlow), 1789-1869. Joseph Barlow Felt papers. 1822-1832.
- Fernández Carballido, Rufo Manuel, 1790-1855. Rufo Manuel Fernández Carballido papers.
- F.H. Elmore papers, 1795-1858.
- Field family. Field-Osgood family papers, 1702-1938.
- Field-Osgood family papers, 1702-1938.
- Field, Susan K. Osgood. Susan K. Osgood Field papers.
- First Church in Albany. First Church in Albany records. 1780.
- Fish, Hamilton, 1808-1893. Hamilton Fish papers, 1732-1914.
- Fisher, George P. (George Purnell), 1817-1899. George P. Fisher papers, 1772-1905.
- Fiske, Asa Severance, 1833-1925. Asa Severance Fiske papers.
- Fiske, Elizabeth Worthington Hand, 1835-1919. Elizabeth Worthington Hand Fiske papers.
- Fiske family. John Aldrich Stephenson collection of the Hand, Fiske, and Aldrich families papers. 1745-1966.
- Fiske, Samuel Wheelock, 1828-1864. Samuel Wheelock Fiske papers.
- Floyd, Charles Rinaldo, 1797-1845. Charles Rinaldo Floyd papers. 1816-1845.
- Floyd family. Campbell-Preston-Floyd families papers, 1741-1931.
- Floyd family. Floyd-McAdoo families papers, 1806-1894.
- Floyd, John, 1769-1839. John Floyd letterbooks and estate book. 1806-1830.
- Floyd-McAdoo families papers, 1806-1894.
- Foote, Andrew H. (Andrew Hull), 1806-1863. Andrew H. Foote papers, 1822-1890.
- Foote, Charles Augustus, 1785-1828. Charles Augustus Foote papers.
- Foote, Charles Augustus, 1818-1883. Charles Augustus Foote papers.
- Foote, Ebenezer, 1756-1829. Ebenezer Foote family papers, 1751-1871.
- Foote family. Ebenezer Foote family papers, 1751-1871.
- Foote, Frederick Parsons, 1783-1827. Frederick Parsons Foote papers.
- Foote, Harriet, 1773-1842. Harriet Foote papers.
- Foote, Justin, b. 1762. Justin Foote papers.
- Foote, Rensselaer, 1815-1862. Rensselaer Foote papers.
- Foster, Augustus John, Sir, 1780-1848. Sir Augustus John Foster papers, 1794-1844.
- Fowler, William Chauncey, 1793-1881. William Chauncey Fowler papers.
- Fox, Gustavus Vasa, 1821-1883. Gustavus Vasa Fox papers.
- Fox, Virginia L. Woodbury Virginia L. Woodbury Fox correspondence and diary.
- Francis Asbury Roe papers, 1842-1901.
- Francis Baylies papers, 1814-1843.
- Francis O.J. Smith digest of congressional reports, 1844.
- Francis Winslow papers, 1833-1863.
- Frank Alden Hill genealogical collection, 1627-1897.
- Franklin Pierce papers, 1820-1869.
- Frederick Law Olmsted papers, 1777-1952.
- Frémont, Jessie Benton, 1824-1902. John Charles Frémont and Jessie Benton Frémont papers. 1828-1980.
- Frémont, John Charles, 1813-1890. John Charles Frémont and Jessie Benton Frémont papers, 1828-1980.
- French, Benjamin B. (Benjamin Brown), 1800-1870. Benjamin B. French family papers, 1778-1940.
- French family. Benjamin B. French family papers, 1778-1940.
- French, Francis O. (Francis Ormond), 1837-1893. Francis O. French papers.
- Frič, Alberto Vojtěch, 1882-1944. Alberto Vojtěch Frič papers.
- Frost, Edward, 1801-1868. Edward Frost papers, 1795-1901.
- Fuller, Melville Weston, 1833-1910. Melville Weston Fuller papers, 1794-1949.
- Furness, Clifton Joseph, 1898-1946. Clifton Joseph Furness notebook. 1941.
G
- Gallaudet, Edward Miner, 1837-1917. T.H. Gallaudet and Edward Miner Gallaudet papers. 1806-1958.
- Gallaudet, T. H. (Thomas Hopkins), 1787-1851. T.H. Gallaudet and Edward Miner Gallaudet papers, 1806-1958.
- Galloway family. Galloway-Maxcy-Markoe families papers, 1654-1888.
- Galloway family. Joseph Galloway family papers, 1743-1823.
- Galloway, John, d. 1810. John Galloway papers.
- Galloway, Joseph, 1731-1803. Joseph Galloway family papers, 1743-1823.
- Galloway-Maxcy-Markoe families papers, 1654-1888.
- Galloway, Samuel, 1720-1785. Samuel Galloway papers.
- Garfield, Abram, b. 1872 Abram Garfield papers.
- Garfield, Irvin McDowell, 1870-1951 Irvin McDowell papers.
- Garfield, Lucretia Rudolph, 1832-1918. Lucretia Rudolph Garfield papers, 1807-1958.
- George Hodges collection, circa 1790-circa 1909.
- George Nicholas Sanders family papers, 1833-1973.
- George P. Fisher papers, 1772-1905.
- George P. Merrill correspondence and autographs, 1803-1926.
- George Pope Morris papers, 1832-1862.
- George Redington papers, 1804-1907.
- George Watterston papers, 1809-1866.
- Georgetown and Leesburg Turnpike Company. Georgetown and Leesburg Turnpike Company daybooks. 1816-1836.
- Georgetown (Washington, D.C.). Board of Commissioners. Georgetown (Washington, D.C.) Board of Commissioners minutes. 1751-1789.
- Georgetown (Washington, D.C.) Corporation. Georgetown (Washington, D.C.) Corporation government records, 1751-1881.
- Georgetown (Washington, D.C.) Corporation government records, 1751-1881.
- German captured documents collection, 1766-1945.
- Gerry, Elbridge, 1744-1814. Elbridge Gerry papers, 1772-1901.
- Gibbes, Lewis Reeves, 1810-1894. Lewis Reeves Gibbes papers, 1793-1894.
- Giddings, Joshua R. (Joshua Reed), 1795-1864. Joshua R. Giddings and George Washington Julian papers, 1839-1899.
- Gideon Welles papers, 1777-1911.
- Gillespie, David. David Gillespie papers. 1777-1801.
- Gilpin, Joshua, 1765-1840. Joshua Gilpin papers.
- Glassford, John, 1715-1783. John Glassford papers.
- Goldsborough, Louis Malesherbes, 1805-1877. Louis Malesherbes Goldsborough papers, 1797-1874.
- Goodell, William, 1792-1867. William Goodell papers, 1818-1917.
- Gould, Alice Bache, 1868-1953. Alice Bache Gould papers.
- Gouverneur Morris papers, 1771-1834.
- Grant, Julia Dent, 1826-1902. Julia Dent Grant correspondence and memoirs.
- Grant, Ulysses S. (Ulysses Simpson), 1822-1885. Ulysses S. Grant papers, 1819-1974.
- Gray, Asa, 1810-1888. Asa Gray papers, 1840-1859.
- G.R.B. Horner papers, 1826-1911.
- Green, Duff, 1791-1875. Duff Green papers, 1716-1883.
- Gresham, LeRoy Wiley, 1847-1865. LeRoy Wiley Gresham papers.
- Gwinn, John, 1791-1849. John Gwinn papers, 1815-1864.
H
- Hack, Charles W. Charles W. Hack papers, circa 1800-1926.
- Hale, Edward Everett, 1822-1909. Edward Everett Hale papers.
- Hale family. Hale family papers, 1698-1916.
- Hale family papers, 1698-1916.
- Hale, Nathan, 1784-1863. Nathan Hale papers.
- Halsted B. VanderPoel literary collection, 1815-1929.
- Hamilton, Alexander, 1757-1804. Alexander Hamilton papers, 1708-1903.
- Hamilton Fish papers, 1732-1914.
- Hammer, Armand, 1898-1990. Armand Hammer papers, circa 1508-1989.
- Hammond, James Henry, 1807-1864. James Henry Hammond papers, 1774-1875.
- Hand, Catharine Worthington Fowler, 1801-1865. Catharine Worthington Fowler Hand papers.
- Hand family. John Aldrich Stephenson collection of the Hand, Fiske, and Aldrich families papers. 1745-1966.
- Hand, Joseph Winborn, 1792-1844. Joseph Winborn Hand papers.
- Hapgood, Elizabeth Reynolds. Norman Hapgood and Elizabeth Reynolds Hapgood papers. 1824-1977.
- Hapgood, Norman, 1868-1937. Norman Hapgood and Elizabeth Reynolds Hapgood papers, 1824-1977.
- Harman Blennerhassett papers, 1755-1866.
- Harrison family. Short-Harrison-Symmes families papers, 1760-1878.
- Harrison, James O., 1804-1888. James O. Harrison papers, 1803-1912.
- Harrison, John Cleves Symmes, 1798-1830. John Cleves Symmes Harrison papers.
- Harrison, John Scott, 1804-1878. John Scott Harrison papers.
- Harrison, William Henry, 1773-1841. William Henry Harrison papers.
- Harrison, William Henry, 1773-1841. William Henry Harrison papers, 1734-1939.
- Harrison, William Henry, 1802-1838. William Henry Harrison papers.
- Harry Innes papers, 1754-1900.
- Hart, Ira. Ira Hart sermon notes.
- Hartt, Charles Frederick, 1840-1878. Charles Frederick Hartt papers.
- Harvey, Charles Henry, 1830-1896. Charles Henry Harvey papers, 1835-1965.
- Harvey, Joanne. Joanne Harvey papers.
- Harwood family. Harwood family papers, 1767-1940.
- Harwood family papers, 1767-1940.
- Hawley, Harriet Ward Foote, 1831-1886. Harriet Ward Foote Hawley papers.
- Hawley, Joseph R. (Joseph Roswell), 1826-1905. Joseph R. Hawley papers, 1638-1906.
- Hay, John, 1838-1905. John Hay papers.
- Helen Keller papers, 1842-1954.
- Henry A. Willard II collection, 1743-1888.
- Henry Bartholomew Cox collection, 1492-1960.
- Henry Clay family papers, 1732-1927.
- Henry L. Abbot family papers, 1770-2001.
- Henry Pelham Holmes Bromwell papers, 1794-1929.
- Henry Rowe Schoolcraft papers, 1788-1941.
- Henry Ward Beecher papers, 1836-1886.
- Henry William Ellsworth papers, 1796-1886.
- Henry Woodhouse collection relating to George Washington, 1656-1930.
- Herman K. Crofoot collection of Francis Elias Spinner papers, 1792-1908.
- Herndon family. Charles Pinkerton collection of Arthur and Herndon family papers, 1822-1938.
- Herndon-Weik collection of Lincolniana, circa 1824-1933.
- Herndon, William Henry, 1818-1891. William Henry Herndon papers. 1849-1891.
- Hill, Frank Alden. Frank Alden Hill genealogical collection, 1627-1897.
- Hillard, Harriet Low, 1809-1877. Harriet Low Hillard papers.
- Hitchcock, Ethan Allen, 1798-1870. Ethan Allen Hitchcock papers, 1793-1888.
- Hitchcock, Samuel, 1808-1851. Samuel Hitchcock papers.
- Hodges collection, circa 1790-circa 1909.
- Hodges family collection, circa 1790-circa 1909.
- Hodges family. Hodges family collection, circa 1790-circa 1909.
- Hodges, Samuel, 1792-1828. Samuel Hodges papers, 1822-1827.
- Holker, John, 1745-1822. John Holker papers, 1777-1822.
- Hollins, John. John Hollins papers.
- Hollins, Robert. Robert Hollins papers.
- Hollins, Thomas. Thomas Hollins papers.
- Holmes, Oliver Wendell, 1809-1894. Oliver Wendell Holmes papers, 1837-1931.
- Holten, Samuel, 1738-1816. Samuel Holten papers, 1630-1843.
- Hooper, Samuel, 1808-1875. Samuel Hooper papers, 1829-1874.
- Hopkins, Cornelia Lee, 1780-1815. Cornelia Lee Hopkins papers.
- Horner, G. R. B. (Gustavus Richard Brown), 1804-1892. G.R.B. Horner papers, 1826-1911.
- Horner, Mabel Carlton. Mabel Carlton Horner biography of Caleb Henry Carlton.
- Horsford-Tryon families papers, 1800-2000.
- Howe, Julia Ward, 1819-1910. Julia Ward Howe papers, 1845-1917.
- Howe, Letitia T. Letitia T. Howe collection, 1822-1876.
- Hubbard family papers, 1639-1925.
- Hubbard, Gardiner G. (Gardiner Greene), 1822-1897. Gardiner G. Hubbard papers.
- Hubbard, Gertrude Mercer McCurdy, 1827-1909. Gertrude Mercer McCurdy Hubbard papers.
- Hubbard, Robert J. Lecture.
- Hubbard, Samuel, 1785-1847. Samuel Hubbard papers.
- Hubbard, Thomas H. (Thomas Hill), 1781-1857. Thomas H. Hubbard papers, 1817-1823.
- Hugh Lenox Scott papers, 1582-1981.
- Hugh T. Taggart collection relating to the District of Columbia and Maryland, 1751-1889.
- Humphrey Marshall papers, 1771-2002.
- Hunsberger, George S., 1914- George S. Hunsberger papers.
I
- Innes, Harry, 1752-1816. Harry Innes papers, 1754-1900.
- Institute of Aerospace Sciences archives, 1783-1962.
- Institute of the Aerospace Sciences. Institute of the Aerospace Sciences archives.
- Irene Aloha Wright papers, 1620-1977.
- Israel Perlstein collection relating to Imperial Russia, 1613-1914.
- I︠U︡din, G. V. (Gennadiĭ Vasilʹevich), 1840-1912. Yudin collection of Russian-American Company records, 1783-1946.
- Izard, Elizabeth Byrd Carter Shippen. Elizabeth Byrd Carter Shippen Izard papers.
- Izard family. Ralph Izard family papers, 1778-1826.
- Izard, Ralph, 1742-1804. Ralph Izard family papers, 1778-1826.
J
- Jackson, Andrew, 1767-1845. Andrew Jackson papers, 1775-1874.
- Jackson, Ebenezer, 1763-1837. Ebenezer Jackson papers, 1784-1873.
- Jacob Gerhard Koch papers, 1783-1941.
- James A. Bayard and Richard H. Bayard papers, 1797-1885.
- James Brown papers, 1765-1867.
- James Buchanan and Harriet Lane Johnston papers, 1825-1887.
- James Dudley Morgan collection of Digges-L'Enfant-Morgan papers, 1674-1923.
- James Fowler Simmons papers, 1771-1939.
- James Gillespie Birney papers, 1830-circa 1895.
- James Henry Hammond papers, 1774-1875.
- James K. Polk papers, 1775-1891.
- James Kent papers, 1779-1854.
- James Knight and Walter C. White papers, 1825-1867.
- James L. Cathcart papers, 1785-1817.
- James Madison papers, 1723-1859.
- James McHenry papers, 1775-1862.
- James Monroe papers, 1758-1839.
- James O. Harrison papers, 1803-1912.
- James Sever papers, 1764-1956.
- James Thomas Ward papers, 1838-1897.
- James Wadsworth family papers, 1730-1959.
- Jarnac, Charles Rosalie de Rohan-Chabot, comte de. Charles Rosalie de Rohan-Chabot, comte de Jarnac, papers.
- Jarnac, Louis Charles Guillaume de Rohan-Chabot, comte de, 1780-1875. Louis Charles Guillaume de Rohan-Chabot, comte de Jarnac, papers.
- Jarnac, Philippe-Ferdinand-Auguste de Rohan-Chabot, comte de, 1815-1875. Philippe-Ferdinand-Auguste de Rohan-Chabot, comte de Jarnac, papers.
- J.C. Bancroft Davis papers, 1849-1902.
- Jeannette Thurber Connor collection of Floridiana, 1570-1927.
- Jefferson, Thomas, 1743-1826. Thomas Jefferson papers, 1606-1943.
- Jennie Lorenz collection relating to Charlotte Cushman, 1830-1960.
- Jesse W. Fell papers, 1806-1965.
- Jesup, Thomas Sidney, 1788-1860. Thomas Sidney Jesup papers, 1780-1907.
- J.N. Nicollet papers, 1797-1843.
- Job Pierson family papers, 1755-1908.
- John Adolphus Bernard Dahlgren papers, 1794-1889.
- John Aldrich Stephenson collection of the Hand, Fiske, and Aldrich families papers, 1745-1966.
- John Charles Frémont and Jessie Benton Frémont papers, 1828-1980.
- John Davis Batchelder collection of manuscripts, 1537-1944.
- John Dean Caton papers, 1826-1947.
- John Ericsson papers, 1821-1890.
- John Fairfield correspondence, 1828-1876.
- John Glassford and Company. John Glassford and Company records, 1743-1886.
- John Glassford and Company records, 1743-1886.
- John Gwinn papers, 1815-1864.
- John Holker papers, 1777-1822.
- John J. Crittenden papers, 1782-1913.
- John James Beckley family papers, 1789-1918.
- John Keep papers, 1781-1929.
- John Leeds Bozman family papers, 1688-1883.
- John M. Clayton papers, 1798-1868.
- John McLean papers, 1817-1861.
- John Shaw papers, 1798-1895.
- John Tyler papers, 1691-1918.
- John Warren Williams family papers, 1839-1895.
- Johnson, Reverdy, 1796-1876. Reverdy Johnson papers, 1830-1876.
- Johnston, Harriet Lane, 1830-1903. James Buchanan and Harriet Lane Johnston papers. 1825-1887.
- Johnston, John, 1762-1828. John Johnston papers.
- Johnston, John, 1852-1927. John Johnston papers.
- Jonathan D. Meredith papers, 1795-1859.
- Jones, Elizabeth Cocke Pratt, 1701-1762. Elizabeth Cocke Pratt Jones papers.
- Jones family. Roger Jones family papers, 1649-1896.
- Jones, Frederick, d. 1722. Frederick Jones papers.
- Jones, Roger, 1625?-1701. Roger Jones papers.
- Jones, Thomas, 1726-ca. 1785. Thomas Jones papers.
- Jones, Thomas ap Thomas, 1782-1843. Thomas ap Thomas Jones papers.
- Jones, Thomas, d. ca. 1757. Thomas Jones papers.
- Jones, Thomas, d. ca. 1800. Thomas Jones papers.
- Jones, Walter, 1745-1815. Walter Jones papers.
- Joseph Desha and John R. Desha papers, 1773-1871.
- Joseph Galloway family papers, 1743-1823.
- Joseph J. Roberts family papers, 1839-2001.
- Joseph Meredith Toner collection of manuscripts, 1741-1896.
- Joseph R. Hawley papers, 1638-1906.
- Joseph Sewall papers, 1832-1907.
- Joseph Story correspondence, 1807-1943.
- Joshua Lawrence Chamberlain papers, 1775-1913.
- Joshua R. Giddings and George Washington Julian papers, 1839-1899.
- Josiah Bartlett family papers, 1710-1931.
- Jubal Anderson Early papers, 1829-1930.
- Julia Ward Howe papers, 1845-1917.
- Julian, George Washington, 1817-1899. Joshua R. Giddings and George Washington Julian papers. 1839-1899.
- Justin G. Turner autograph collection, 1763-1968.
K
- Kalisky, Louisa, fl. 1823-1827. Louisa Kalisky papers.
- Keep, John, 1781-1870. John Keep papers, 1781-1929.
- Keller, Helen, 1880-1968. Helen Keller papers, 1842-1954.
- Kendall, Amos, 1789-1869. Amos Kendall papers, 1835-1909.
- Kent, James, 1763-1847. James Kent papers, 1779-1854.
- Kerr, John Bozman, 1809-1878. John Bozman Kerr papers.
- Kerr, John Leeds, 1780-1844. John Leeds Kerr papers.
- Key-Cutts-Turner family papers, 1808-1975.
- Key family. Key-Cutts-Turner family papers, 1808-1975.
- Key, Francis Scott, 1779-1843. Francis Scott Key papers.
- King family. Nicholas King family papers, 1792-1987.
- King, N. (Nicholas), 1771-1812. Nicholas King family papers, 1792-1987.
- King, Rt. (Robert), 1774 or 5-1831. Rt. King survey notes. 1793-1795.
- Knight, James, 1787-1858. James Knight and Walter C. White papers, 1825-1867.
- Koch, Jacob Gerhard. Jacob Gerhard Koch papers, 1783-1941.
L
- L'Enfant, Pierre Charles, 1754-1825. Pierre Charles L'Enfant papers. 1778-1864.
- La Fayette, Michel Louis Christophe Roch Gilbert Motier, marquis de, 1732-1759. Michel Louis Christophe Roch Gilbert Motier, marquis de La Fayette, papers.
- La Tour-Maubourg, Anastasie du Motier de La Fayette, comtesse de, 1777-1863. Anastasie du Motier de La Fayette, comtesse de La Tour-Maubourg, papers.
- Lafayette, Georges Washington Louis Gilbert Du Motier, marquis de, 1779-1849. Georges Washington Louis Gilbert Du Motier, marquis de Lafayette, papers.
- Lafayette, Marie Adrienne de Noailles, marquise de, 1759-1807. Marie Adrienne de Noailles, marquise de Lafayette, papers.
- Lafayette, Marie Joseph Paul Yves Roch Gilbert Du Motier, marquis de, 1757-1834. Marie Joseph Paul Yves Roch Gilbert Du Motier, marquis de Lafayette, papers, 1776-1934.
- Lafayette, Marie Joseph Paul Yves Roch Gilbert Du Motier, marquis de, 1757-1834. Marquis de Lafayette papers, 1757-1990.
- Lane, J. F., fl. 1834-1835. J.F. Lane letterbook. 1834-1835.
- Lasteyrie du Saillant, Adrien-Jules, marquis de, 1810-1883. Adrien-Jules, marquis de Lasteyrie du Saillant, papers.
- Lasteyrie du Saillant, Louis, marquis de, 1781-1826. Louis, marquis de Lasteyrie du Saillant, papers.
- Lasteyrie du Saillant, Olivia de Rohan-Chabot, marquise de, 1813-1899. Olivia de Rohan-Chabot, marquise de Lasteyrie du Saillant, papers.
- Lasteyrie du Saillant, Virginie du Motier de La Fayette, marquise de, 1782-1849. Virginie du Motier de La Fayette, marquise de Lasteyrie du Saillant, papers.
- Law, Elizabeth Parke Custis, 1776-1832. Elizabeth Parke Custis Law papers.
- Lawton, Eba Anderson, d. 1919. Eba Anderson Lawton papers.
- Lear, Tobias, 1762-1816. Tobias Lear papers, 1790-1816.
- Learned, Henry Barrett, 1868-1931. Henry Barrett Learned papers.
- Lee, Ann Hill Carter, 1773-1829. Ann Hill Carter Lee papers. (2)
- Lee, Anne Robinson McCarty, 1798-1840. Anne Robinson McCarty Lee papers. (2)
- Lee, Arthur, 1740-1792. Arthur Lee papers.
- Lee, Charles, 1758-1815. Charles Lee papers.
- Lee, Charles Carter, 1798-1871. Charles Carter Lee papers.
- Lee, Elizabeth Collins, d. 1858. Elizabeth Collins Lee papers.
- Lee family. Custis-Lee family papers, 1700-circa 1928.
- Lee family. DeButts-Ely collection of Lee family papers, 1749-1914.
- Lee family. Ethel Armes collection of Lee family papers, 1671-1936.
- Lee family. Lee-Palfrey families papers, 1780-1932.
- Lee, Hannah Philippa Ludwell. Hannah Philippa Ludwell Lee papers.
- Lee, Henrietta Bedinger, b. 1810. Henrietta Bedinger Lee papers.
- Lee, Henry, 1691-1747. Henry Lee papers.
- Lee, Henry, 1756-1818. Henry Lee papers. (2)
- Lee, Henry, 1787-1837. Henry Lee papers.
- Lee, Ludwell, 1760-1836. Ludwell Lee papers.
- Lee, Mary Bland, 1704-1764. Mary Bland Lee papers.
- Lee, Mary Custis, 1835-1918. Mary Custis Lee papers.
- Lee, Mary Randolph Custis, 1807-1873. Mary Randolph Custis Lee papers. (2)
- Lee-Palfrey families papers, 1780-1932.
- Lee, Richard Bland, 1761-1827. Richard Bland Lee papers. (2)
- Lee, Richard Henry, 1732-1794. Richard Henry Lee papers.
- Lee, Richard Henry, 1794-1865. Richard Henry Lee papers.
- Lee, Robert E. (Robert Edward), 1807-1870. Robert E. Lee papers. (2)
- Lee, Susan Palfrey, 1767-1822. Susan Palfrey Lee papers.
- Lee, Thomas, 1690-1750. Thomas Lee papers. (2)
- Lee, William, 1739-1795. William Lee papers.
- Lee, William, 1772-1840. William Lee papers.
- Lee, William Henry Fitzhugh, 1837-1891. William Henry Fitzhugh Lee papers.
- Leech, Abraham. Abraham Leech correspondence and diary. 1837-circa 1881.
- Letitia T. Howe collection, 1822-1876.
- Levi Woodbury family papers, 1638-1914.
- Levisee, Aaron Burton. Aaron Burton Levisee papers, 1847-1992.
- Lewis H. Machen family papers, 1802-1938.
- Lewis, Meriwether, 1774-1809. Diary excerpt of Meriwether Lewis (undated).
- Lewis Reeves Gibbes papers, 1793-1894.
- Lewis Tappan papers, 1809-1903.
- Lincoln, Abraham, 1809-1865. Abraham Lincoln correspondence. 1864 July 9.
- Lincoln, Abraham, 1809-1865. Abraham Lincoln papers.
- Lincoln, Abraham, 1809-1865. Abraham Lincoln papers, 1774-1948.
- Lincoln, Abraham, 1809-1865. Abraham Lincoln papers. 1824-1865.
- Lincoln, Benjamin, 1733-1810. Benjamin Lincoln papers, 1778-1806.
- Littell, Eliakim, 1797-1870. Eliakim Littell correspondence, 1819-1869.
- Livermore, Eunice. Eunice Livermore papers.
- Livermore, Isaac. Isaac Livermore papers.
- Livingston, Anne Home Shippen, 1763-1841. Anne Home Shippen Livingston papers. (2)
- Logan Pearsall Smith papers, 1760-1946.
- Loines, Mary Hillard, 1844-1944. Mary Hillard Loines papers.
- Loisel, Regis. Account of the upper Missouri River country (1803).
- Loper family. Palmer-Loper family papers, 1667-1994.
- Loper, R. F. (Richard F.) R.F. Loper papers.
- Lorenz, Jennie, 1886-1962. Jennie Lorenz collection relating to Charlotte Cushman, 1830-1960.
- Louis Malesherbes Goldsborough papers, 1797-1874.
- Louis McLane correspondence, 1795-1894.
- Low, Abiel Abbot, 1811-1893. Abiel Abbot Low papers.
- Low, Edward Allen, 1817-1898. Edward Allen Low papers.
- Low family. Low-Mills family papers, 1767-1971.
- Low-Mills family papers, 1767-1971.
- Low, Nicholas, 1739-1826. Nicholas Low papers, 1773-1897.
- Luce, Stephen Bleecker, 1827-1917. Stephen Bleecker Luce papers, 1799-1955.
- Lucian Barbour papers, 1838-1977.
- Lucretia Rudolph Garfield papers, 1807-1958.
- Luis Aury papers, 1801-1911.
M
- Machen, Arthur Webster, 1827-1919. Arthur Webster Machen papers.
- Machen, Caroline Webster. Caroline Webster Machen papers.
- Machen, Emmeline. Emmeline Machen papers.
- Machen family. Lewis H. Machen family papers, 1802-1938.
- Machen, James P. James P. Machen papers.
- Machen, Lewis H. (Lewis Henry), 1790-1863. Lewis H. Machen family papers, 1802-1938.
- Machen, Minnie J. Gresham. Minnie J. Gresham Machen papers.
- Maclay, Edgar Stanton, 1863-1919. Edgar Stanton Maclay papers, 1782-circa 1918.
- Macomb, Alexander, 1888-1970. Alexander Macomb papers.
- Macomb, Ann Minerva Rodgers, 1824-1916. Ann Minerva Rodgers Macomb papers.
- Macomb, Christina, 1861-1945. Christina Macomb papers.
- Macomb, Nannie, 1864-1952. Nannie Macomb papers.
- Madison, Dolley, 1768-1849. Dolley Madison papers, 1794-1852.
- Madison, James, 1751-1836. James Madison papers, 1723-1859.
- Margaret Bayard Smith papers, 1789-1874.
- Marian S. Carson collection of manuscripts, 1656-1995.
- Marie Joseph Paul Yves Roch Gilbert Du Motier, marquis de Lafayette, papers, 1776-1934.
- Markoe family. Galloway-Maxcy-Markoe families papers, 1654-1888.
- Markoe, Francis, 1801-1871. Francis Markoe papers.
- Marquis de Lafayette papers, 1757-1990.
- Marshall family. Humphrey Marshall papers, 1771-2002.
- Marshall, Humphrey, 1812-1872. Humphrey Marshall papers, 1771-2002.
- Marshall, John, 1755-1835. Albert Jeremiah Beveridge collection of John Marshall papers. 1776-1844.
- Martin Van Buren papers, 1787-1910.
- Mary Ann Bickerdyke papers, 1847-1905.
- Maryland Insurance Company. Maryland Insurance Company records.
- Massachusetts Colonization Society. Massachusetts Colonization Society letterbooks. 1856-1875.
- Matthew Fontaine Maury papers, 1825-1960.
- Matthew Simpson papers, 1829-1927.
- Maury, Matthew Fontaine, 1806-1873. Matthew Fontaine Maury papers, 1825-1960.
- Maxcy family. Galloway-Maxcy-Markoe families papers, 1654-1888.
- Maxcy, Virgil, 1785-1844. Virgil Maxcy papers.
- Maynard, Edward, 1813-1891. Edward Maynard papers, 1836-1867.
- McAdoo family. Floyd-McAdoo families papers, 1806-1894.
- McAdoo, Mary Faith Floyd, 1832-1913. Mary Faith Floyd McAdoo diaries. 1870-1891.
- McAdoo, W. G. (William Gibbs), 1820-1894. W.G. McAdoo diaries. 1846-1894.
- McArthur, Duncan, 1772-1839. Duncan McArthur papers, 1783-1848.
- McBride, James, 1784-1817. James McBride papers. 1808-1817.
- McCurdy, Robert Henry, 1800-1880. Robert Henry McCurdy papers.
- McHenry, James, 1753-1816. James McHenry papers, 1775-1862.
- McKim, Alexander, 1748-1832. Alexander McKim papers.
- McLain, William. William McLain papers. 1831-1850.
- McLane, Louis, 1786-1857. Louis McLane correspondence, 1795-1894.
- McLean, Andrew. Andrew McLean papers. 1774-1780.
- McLean, John, 1785-1861. John McLean papers. 1813-1829.
- McLean, John, 1785-1861. John McLean papers, 1817-1861.
- Medill, William, 1802-1865. William Medill papers, 1834-1864.
- Meigs, Montgomery, 1847-1931. Montgomery Meigs papers.
- Meigs, Montgomery C. (Montgomery Cunningham), 1816-1892. Montgomery C. Meigs papers, 1799-1971.
- Meigs, Return Jonathan, 1740-1823. Return Jonathan Meigs papers.
- Meigs, Return Jonathan, 1764-1825. Return Jonathan Meigs papers.
- Melville Weston Fuller papers, 1794-1949.
- Mercy-Argenteau family papers, 1410-1921.
- Mercy family. Mercy-Argenteau family papers, 1410-1921.
- Meredith, Jonathan D., 1783-1872. Jonathan D. Meredith papers, 1795-1859.
- Merrill, George P. (George Perkins), 1854-1929. George P. Merrill correspondence and autographs, 1803-1926.
- Mills family. Low-Mills family papers, 1767-1971.
- Mills, Robert, 1781-1855. Robert Mills papers, 1804-1862.
- Moldenhauer archives at the Library of Congress, circa 1000-circa 1990.
- Moldenhauer, Hans. Moldenhauer archives at the Library of Congress, circa 1000-circa 1990.
- Monroe, James, 1758-1831. James Monroe papers, 1758-1839.
- Montgomery C. Meigs papers, 1799-1971.
- Moore, John Bassett, 1860-1947. John Bassett Moore file. 1732-1914.
- Mordecai, Alfred, 1804-1887. Alfred Mordecai papers, 1790-1948.
- Morgan, James Dudley, 1862-1919. James Dudley Morgan collection of Digges-L'Enfant-Morgan papers, 1674-1923.
- Morgan, William Ferguson. William Ferguson Morgan autograph collection. 1746-1938.
- Morris, Anne Cary Randolph, 1774-1837. Anne Cary Randolph Morris papers.
- Morris, George Pope, 1802-1864. George Pope Morris papers, 1832-1862.
- Morris, Gouverneur, 1752-1816. Gouverneur Morris papers, 1771-1834.
- Morris, Robert, 1734-1806. Robert Morris papers, 1775-1829.
- Morrison, James, 1755-1823. James Morrison papers.
- Morse, Samuel Finley Breese, 1791-1872. Samuel Finley Breese Morse papers, 1793-1944.
- Murray, William Vans, 1760-1803. William Vans Murray papers, 1778-1805.
- Music cover collection (Library of Congress).
- Myer, Albert James, 1829-1880. Albert James Myer papers, 1816-1880.
- Myers, Leonard, 1827-1905. Leonard Myers papers.
N
- Nathaniel Wright family papers, 1787-1917.
- New England Historic Genealogical Society. New England Historic Genealogical Society records. 1849-1852.
- Newland, William Augustine, 1813-1901. Newland/Zeuner collection, circa 1735-circa 1900.
- Newland/Zeuner collection, circa 1735-circa 1900.
- Nicholas Biddle papers, 1681-1933.
- Nicholas King family papers, 1792-1987.
- Nicholas Low papers, 1773-1897.
- Nicholas Philip Trist papers, 1795-1873.
- Nicollet, J. N. (Joseph Nicolas), 1786-1843. J.N. Nicollet papers.
- Nicollet, J. N. (Joseph Nicolas), 1786-1843. J.N. Nicollet papers, 1797-1843.
- Ninian Pinkney papers, 1822-1913.
- Norman Hapgood and Elizabeth Reynolds Hapgood papers, 1824-1977.
O
- O'Callaghan, E. B. (Edmund Bailey), 1797-1880. E.B. O'Callaghan papers, 1830-1879.
- O'Connor, William Douglas, 1832-1889. William Douglas O'Connor papers.
- O'Neil, Charles, 1842-1927. Charles O'Neil papers, 1833-1927.
- O'Reilly, Alejandro, 1725-1794. Alejandro O'Reilly manuscript volume.
- Oliver Ellsworth family papers, 1762-1907.
- Oliver Wendell Holmes papers, 1837-1931.
- Olmsted, Frederick Law, 1822-1903. Frederick Law Olmsted papers, 1777-1952.
- Olmsted, Gideon, 1749-1845. Gideon Olmsted papers.
- Olmsted, John, 1791-1873. John Olmsted papers.
- Osgood family. Field-Osgood family papers, 1702-1938.
- Osgood, Joseph B. F. (Joseph Barlow Felt), b. 1823 Joseph B. F. Osgood papers. 1817-1892.
- Osgood, Maria Bowne Franklin. Maria Bowne Franklin Osgood papers.
- Osgood, Samuel, 1748-1813. Samuel Osgood papers.
P
- Palfrey family. Lee-Palfrey families papers, 1780-1932.
- Palmer, Alexander Smith, 1806-1894. Alexander Smith Palmer papers.
- Palmer family. Palmer-Loper family papers, 1667-1994.
- Palmer-Loper family papers, 1667-1994.
- Palmer, Nathaniel Brown, 1799-1877. Nathaniel Brown Palmer papers.
- Parker, Amasa J. (Amasa Junius), 1807-1890. Amasa J. Parker papers, 1836-1875.
- Parsons, Enoch, 1769-1846. Enoch Parsons papers.
- Parsons family papers, 1769-1878.
- Parsons family. Parsons family papers, 1769-1878.
- Parsons, Samuel Holden, 1737-1789. Samuel Holden Parsons papers.
- Parsons, Samuel Holden, 1800-1871. Samuel Holden Parsons papers.
- Partridge, Alden, 1785-1854. Alden Partridge papers, 1807-1959.
- Patent medicine labels and advertisements (Library of Congress).
- Patterson, Daniel Todd, 1786-1839. Daniel Todd Patterson papers, 1772-1927.
- Peckham family. Wheeler H. Peckham family papers, 1838-1894.
- Peckham, Rufus W., 1809-1873. Rufus W. Peckham papers.
- Peckham, Rufus Wheeler, 1838-1909. Rufus Wheeler Peckham papers.
- Peckham, Wheeler H. (Wheeler Hazard), 1833-1905. Wheeler H. Peckham family papers, 1838-1894.
- Périer, Natalie du Motier de La Fayette, 1803-1878. Natalie du Motier de La Fayette Périer papers.
- Perlstein, Israel, 1897-1975. Israel Perlstein collection relating to Imperial Russia, 1613-1914.
- Perry, Matthew Calbraith, 1794-1858. Matthew Calbraith Perry papers.
- Perry, Oliver Hazard, 1785-1819. Oliver Hazard Perry papers.
- Peter Chardon Brooks Insurance Agency. Peter Chardon Brooks Insurance Agency records.
- Physick, Edmund, 1725 or 6-1804. Edmund Physick family papers, 1759-1899.
- Physick family. Edmund Physick family papers, 1759-1899.
- Pickett family. Christiancy and Pickett families' papers, 1835-1998.
- Pickett, George E. (George Edward), 1825-1875. George E. Pickett papers.
- Pickett, George E. (George Edward), 1891 or 2-1959. George E. Pickett papers.
- Pickett, John T. (John Thomas), 1822-1884. John T. Pickett papers.
- Pickett, La Salle Corbell, 1848-1931. La Salle Corbell Pickett papers.
- Pickett, Theodore John. Theodore John Pickett papers.
- Pierce-Aiken family papers, 1797-1903.
- Pierce family. Pierce-Aiken family papers, 1797-1903.
- Pierce, Franklin, 1804-1869. Franklin Pierce papers, 1820-1869.
- Pierrepont, Edwards, 1817-1892. Edwards Pierrepont papers, 1847-1900.
- Pierson family. Job Pierson family papers, 1755-1908.
- Pierson, Job, 1791-1860. Job Pierson family papers, 1755-1908.
- Pierson, Job, 1824-1896. Job Pierson papers.
- Pike, Luther H. Luther H. Pike papers.
- Pike, Zebulon Montgomery, 1779-1813 Diary excerpt of Zebulon Montgomery Pike (undated).
- Pinkerton, Charles, d. 1974. Charles Pinkerton collection of Arthur and Herndon family papers, 1822-1938.
- Pinkney, Ninian, 1811-1877. Ninian Pinkney papers, 1822-1913.
- Pintado, Vicente Sebastián, 1774-1829. Vicente Sebastián Pintado papers, 1781-1842.
- Plumer, William, 1759-1850. William Plumer papers, 1774-1845.
- Polk, James K. (James Knox), 1795-1849. James K. Polk papers, 1775-1891.
- Polk, Sarah Childress, 1803-1891. Sarah Childress Polk papers.
- Porter, David, 1780-1843. David Porter papers.
- Porter, David, 1780-1843. David Porter papers. 1811-1841.
- Porter, David D. (David Dixon), 1813-1891. David D. Porter family papers, 1799-1899.
- Porter, David D. (David Dixon), 1813-1891. David D. Porter papers. 1861-1881.
- Porter family. David D. Porter family papers, 1799-1899.
- Porter family papers, 1811-1881.
- Porter family. Porter family papers, 1811-1881.
- Preble, Edward, 1761-1807. Edward Preble papers, 1680-1912.
- Presbyterian Church in the U.S.A. Presbytery of Washington City. Presbyterian Church in the U.S.A. Presbytery of Washington City records, 1823-1950.
- Presbyterian Church in the U.S.A. Presbytery of Washington City records, 1823-1950.
- Preston family. Campbell-Preston-Floyd families papers, 1741-1931.
- Prince, Christopher, 1751-1832. Christopher Prince papers, 1806-1891.
- Puerto Rican collection, 1591-1900.
- Puerto Rican memorial collection, 1519-1923.
- Puerto Rico. Puerto Rican collection, 1591-1900.
R
- Ralph Izard family papers, 1778-1826.
- Randolph, Elizabeth, fl. 1793. Elizabeth Randolph papers.
- Randolph, Peter S. Peter S. Randolph papers.
- Randolph, William B., b. 1793. William B. Randolph papers, 1696-1884.
- Read family papers, 1568-1906.
- Read family. Read family papers, 1568-1906.
- Read, George, 1733-1798. George Read papers.
- Read, George, 1765-1836. George Read papers.
- Read, James, 1743-1822. James Read papers.
- Read, John, 1769-1854. John Read papers.
- Read, John M. (John Meredith), 1797-1874. John M. Read papers.
- Read, John Meredith, 1837-1896. John Meredith Read papers.
- Redington, George, 1798-1850. George Redington papers, 1804-1907.
- Redington, James, 1810-1891. James Redington papers.
- Reid family. Samuel Chester Reid family papers, 1807-1963.
- Reid, Samuel C. (Samuel Chester), 1818-1897. Samuel C. Reid papers.
- Reid, Samuel Chester, 1783-1861. Samuel Chester Reid family papers, 1807-1963.
- Reverdy Johnson papers, 1830-1876.
- Richard Dale papers, 1778-1918.
- Richard Henry Wilde papers, 1807-1867.
- Richard Rush papers, 1805-1852.
- Richards, Mark, 1760-1844. Mark Richards papers.
- Richardson, Daniel, 1670-1722. Daniel Richardson papers.
- Richardson, Ruth, 1677-1728. Ruth Richardson papers.
- Richardson, William Merchant, 1774-1838. William Merchant Richardson papers.
- Riggs, Elisha, 1779-1853. Elisha Riggs papers. 1813-1896.
- Riggs, Elisha, 1826-1881. Elisha Riggs papers. 1844-1890.
- Riggs, Elisha Francis, 1851-1910. Elisha Francis Riggs papers. 1860-1910.
- Riggs, Elisha Francis, 1887-1936. Elisha Francis Riggs papers. 1887-1935.
- Riggs family papers, 1763-1945.
- Riggs family. Riggs family papers, 1763-1945.
- Riggs, George Washington, 1813-1881. George Washington Riggs papers. 1836-1881.
- Riggs, Romulus, 1782-1846. Romulus Riggs papers. 1821-1882.
- Riggs, T. Lawrason (Thomas Lawrason), 1888-1943. T. Lawrason Riggs papers. 1790-1943.
- Riggs, Thomas, 1873-1945. Thomas Riggs papers. 1887-1945.
- Riggs, William Henry, 1837-1924. William Henry Riggs papers. 1850-1912.
- Robards, Lewis C. Lewis C. Robards receipt book. 1851-1853.
- Robert Anderson papers, 1819-1948.
- Robert Carter papers, 1685-1828.
- Robert Mills papers, 1804-1862.
- Robert Morris papers, 1775-1829.
- Roberts, Edmund, 1784-1836. Edmund Roberts papers, 1803-1905.
- Roberts family. Joseph J. Roberts family papers, 1839-2001.
- Roberts, Joseph J. (Joseph Jenkins), 1809-1876. Joseph J. Roberts family papers, 1839-2001.
- Rodgers family papers, 1740-1987.
- Rodgers family papers, 1788-1944.
- Rodgers family. Rodgers family papers, 1740-1987.
- Rodgers family. Rodgers family papers, 1788-1944.
- Rodgers, John, 1773-1838. John Rodgers papers. (2)
- Rodgers, John, 1812-1882. John Rodgers papers.
- Rodgers, John, 1881-1926. John Rodgers papers.
- Rodgers, John Augustus, 1848-1933. John Augustus Rodgers papers.
- Rodgers, Minerva Denison, 1784-1877. Minerva Denison Rodgers papers.
- Rodgers, William Ledyard, 1860-1944. William Ledyard Rodgers papers.
- Rodney, C. A. (Caesar Augustus), 1772-1824. C.A. Rodney papers.
- Rodney, Caesar, 1728-1784. Caesar Rodney papers.
- Rodney family papers, 1771-1824.
- Rodney family. Rodney family papers, 1771-1824.
- Rodney, Thomas, 1744-1811. Thomas Rodney papers.
- Rodolfo R. Schuller papers, 1492-1915.
- Roe, Francis Asbury, 1823-1901. Francis Asbury Roe papers, 1842-1901.
- Roger Jones family papers, 1649-1896.
- Rossiĭsko-amerikanskai︠a︡ kompanii︠a︡. Yudin collection of Russian-American Company records. 1783-1946.
- Rowan, Stephen C. (Stephen Clegg), 1808-1890. Stephen C. Rowan papers, 1826-1890.
- R.R. Bowker papers, 1831-1931.
- Rush, Madison, fl. 1845-1847. Madison Rush journal. 1845-1847.
- Rush, Richard, 1780-1859. Richard Rush papers, 1805-1852.
- Russell & Co. records, 1812-1894.
- Russell & Co. Russell & Co. records, 1812-1894.
- Russell, Samuel, 1789-ca. 1862. Samuel Russell papers.
- Russia miscellany, 1759-1928.
- Russian Orthodox Greek Catholic Church of America. Diocese of Alaska records, 1733-1938.
- Russian Orthodox Greek Catholic Church of America. Diocese of Alaska. Russian Orthodox Greek Catholic Church of America. Diocese of Alaska records, 1733-1938.
S
- Salmon P. Chase papers, 1755-1898.
- Salter, William D., 1795-1869. William D. Salter papers, 1810-1869.
- Sampson, William, 1764-1836. William Sampson papers, 1806-1849.
- Samuel Adams papers, 1635-1826.
- Samuel Chester Reid family papers, 1807-1963.
- Samuel Finley Breese Morse papers, 1793-1944.
- Samuel Hodges papers, 1822-1827.
- Samuel Holten papers, 1630-1843.
- Samuel Hooper papers, 1829-1874.
- Samuel J. Baird papers, 1834-1892.
- Samuel Smith family papers, 1772-1911.
- Sanders, Anna Johnson Reid, circa 1815-1890. Anna Johnson Reid Sanders correspondence and journals.
- Sanders family. George Nicholas Sanders family papers, 1833-1973.
- Sanders, George N. (George Nicholas), 1848-1890. George N. Sanders journal.
- Sanders, George Nicholas, 1812-1873. George Nicholas Sanders family papers, 1833-1973.
- Sarah Stone autograph collection, 1720-1962.
- Schoolcraft, Henry Rowe, 1793-1864. Henry Rowe Schoolcraft papers, 1788-1941.
- Schoolcraft, Henry Rowe, Mrs. Mrs. Henry Rowe Schoolcraft papers.
- Schoolcraft, Jane Johnston, 1800-1842. Jane Johnston Schoolcraft papers.
- Schoolcraft, Lawrence, 1757-1840. Lawrence Schoolcraft papers.
- Schuller, Rodolfo R., 1873-1932. Rodolfo R. Schuller papers, 1492-1915.
- Schuyler Colfax correspondence and speeches, 1837-1882.
- Scott, Hugh Lenox, 1853-1934. Hugh Lenox Scott papers, 1582-1981.
- Scott, William McKendree, 1817-1861. William McKendree Scott papers. 1845.
- Selfridge, Thomas Oliver, 1804-1902. Thomas Oliver Selfridge papers, 1809-1927.
- Sever, James, d. 1845. James Sever papers, 1764-1956.
- Sewall, Frederick Dummer, 1826-1907. Frederick Dummer Sewall papers. 1862-1907.
- Sewall, Joseph, 1795-1851. Joseph Sewall papers, 1832-1907.
- Shaker collection of records concerning the United Society of Believers in Christ's Second Appearing, 1676-1937.
- Shaw family papers, 1636-1892.
- Shaw family. Shaw family papers, 1636-1892.
- Shaw, John, 1773-1823. John Shaw papers, 1798-1895.
- Shepherd, William R. (William Robert), 1871-1934. William R. Shepherd papers, 1554-1931.
- Sherman, Ellen Ewing, 1824-1888. Ellen Ewing Sherman papers.
- Sherman, William T. (William Tecumseh), 1820-1891. William T. Sherman papers.
- Sherman, William T. (William Tecumseh), 1820-1891. William T. Sherman papers, 1759-1897.
- Shippen, Alice Lee, 1736-1817. Alice Lee Shippen papers.
- Shippen, Edward, 1826-1911. Edward Shippen papers.
- Shippen family papers, 1671-1936.
- Shippen family. Shippen family papers, 1671-1936.
- Shippen, Thomas Lee, 1765-1798. Thomas Lee Shippen papers. (2)
- Shippen, William, 1712-1801. William Shippen papers.
- Shippen, William, 1736?-1808. William Shippen papers.
- Short, Charles Wilkins, 1794-1863. Charles Wilkins Short papers.
- Short family. Short-Harrison-Symmes families papers, 1760-1878.
- Short-Harrison-Symmes families papers, 1760-1878.
- Short, John Cleves, 1792-1864. John Cleves Short papers.
- Short, Peyton, 1761-1825. Peyton Short papers.
- Short, William, 1759-1849. William Short papers.
- Short, William, 1759-1849. William Short papers, 1778-1853.
- Sickles, Daniel Edgar, 1819-1914. Daniel Edgar Sickles papers, 1821-1918.
- Simmons, James Fowler, 1795-1864. James Fowler Simmons papers, 1771-1939.
- Simpson, Matthew, 1811-1884. Matthew Simpson papers, 1829-1927.
- Singleton family papers, 1758-1860.
- Singleton family. Singleton family papers, 1758-1860.
- Sir Augustus John Foster papers, 1794-1844.
- Sir George Cockburn papers, 1788-1847.
- Skipwith, Fulwar, 1765-1839. Fulwar Skipwith papers.
- Smith, C. Alphonso (Charles Alphonso), 1864-1924. C. Alphonso Smith papers. 1864-1927.
- Smith, Caleb B. (Caleb Blood), 1808-1864. Caleb B. Smith papers, 1841-1862.
- Smith, Ebenezer, fl. 1797-1840. Ebenezer Smith account books. 1797-1840.
- Smith family. Samuel Smith family papers, 1772-1911.
- Smith, Francis O. J. (Francis Ormond Jonathan), 1806-1876. Francis O.J. Smith digest of congressional reports, 1844.
- Smith, John Spear, d. 1866. John Spear Smith papers. 1804-1867.
- Smith, Logan Pearsall, 1865-1946. Logan Pearsall Smith papers, 1760-1946.
- Smith, Margaret Bayard, 1778-1844. Margaret Bayard Smith papers, 1789-1874.
- Smith, Robert, 1757-1842. Robert Smith papers. 1796-1830.
- Smith, Samuel, 1752-1839. Samuel Smith family papers, 1772-1911.
- Sons of Temperance of North America. Waddington Division, No. 299 (Waddington, N.Y.) Sons of Temperance of North America. Waddington Division, No. 299 (Waddington, N.Y.) records.
- Spinner, Francis Elias, 1802-1890. Herman K. Crofoot collection of Francis Elias Spinner papers, 1792-1908.
- Spinner, John Peter, 1768-1848. John Peter Spinner diary. circa 1839.
- Squier, E. G. (Ephraim George), 1821-1888. E.G. Squier papers, 1841-1888.
- Stanton, Elizabeth Cady, 1815-1902. Elizabeth Cady Stanton papers, 1814-1946.
- Stephen Bleecker Luce papers, 1799-1955.
- Stephen C. Rowan papers, 1826-1890.
- Stephenson, John Aldrich. John Aldrich Stephenson collection of the Hand, Fiske, and Aldrich families papers. 1745-1966.
- Stevens, Samuel, 1778-1860. Samuel Stevens papers.
- Stevenson, Andrew, 1784-1857. Andrew Stevenson and J.W. Stevenson papers. 1756-1882.
- Stevenson, J. W. (John White), 1812-1886. Andrew Stevenson and J.W. Stevenson papers. 1756-1882.
- Stewart, David, 1800-1858. David Stewart papers.
- Stewart, John, d. 1820. John Stewart papers.
- Stokes, E. H. (Ellwood Haines), 1815-1897. E.H. Stokes papers. 1846-1865.
- Stone, Lucy, 1818-1893. Lucy Stone papers.
- Stone, Sarah, fl. 1840. Sarah Stone autograph collection, 1720-1962.
- Story, Joseph, 1779-1845. Joseph Story correspondence, 1807-1943.
- Sumner, Charles, 1811-1874. Charles Sumner correspondence, 1841-1874.
- Susan B. Anthony papers, 1846-1934.
- Swan, Robert, fl. ca. 1828. Robert Swan sale catalog of books. circa 1828.
- Swisher, Carl Brent, 1897-1968. Carl Brent Swisher collection of research materials relating to Roger B. Taney, 1836-1962.
- Sylvanus Bourne papers, 1775-1859.
- Symmes family. Short-Harrison-Symmes families papers, 1760-1878.
- Symmes, John Cleves, 1742-1814. John Cleves Symmes papers.
T
- Taggart, Hugh T. (Hugh Thomas), 1844-1914. Hugh T. Taggart collection relating to the District of Columbia and Maryland, 1751-1889.
- Tams-Witmark collection, 1701-1915.
- Tams-Witmark-Princeton collection.
- Tappan, Benjamin, 1773-1857. Benjamin Tappan papers, 1795-1900.
- Tappan, Lewis, 1788-1873. Lewis Tappan papers, 1809-1903.
- Tappan, William, b. 1863. William Tappan autograph collection, 1640-1939.
- Taylor, Anna Harrison, 1814-1865. Anna Harrison Taylor papers.
- Taylor, Zachary, 1784-1850. Zachary Taylor papers, 1814-1931.
- T.H. Gallaudet and Edward Miner Gallaudet papers, 1806-1958.
- Thayer, William Sydney, 1830-1864. William Sydney Thayer papers, 1835-1901.
- Thomas Davenport correspondence, 1836-1837.
- Thomas Ewing family papers, 1757-1941.
- Thomas H. Hubbard papers, 1817-1823.
- Thomas Jefferson papers, 1606-1943.
- Thomas Oliver Selfridge papers, 1809-1927.
- Thomas Sidney Jesup papers, 1780-1907.
- Thomas Truxtun papers, 1796-1885.
- Thomson, Charles, 1729-1824. Charles Thomson papers, 1765-1888.
- Thornton, Anna Maria Brodeau, 1775?-1865. Anna Maria Brodeau Thornton papers.
- Thornton, Anna Maria Brodeau, 1775?-1865. Anna Maria Brodeau Thornton papers, 1793-1861.
- Thornton, William, 1759-1828. William Thornton papers, 1741-1865.
- Tissandier, Albert, 1839-1906. Tissandier collection on the history of aeronautics. 1539-1929.
- Tissandier collection on the history of aeronautics, 1539-1929.
- Tissandier, Gaston, 1843-1899. Tissandier collection on the history of aeronautics, 1539-1929.
- Tissandier, Paul, b. 1881. Tissandier collection on the history of aeronautics. 1539-1929.
- Titus Coan family papers, 1818-1923.
- Tobias Lear papers, 1790-1816.
- Toner, Joseph M. (Joseph Meredith), 1825-1896. Joseph Meredith Toner collection of manuscripts, 1741-1896.
- Traubel, Anne Montgomerie, 1864-1954. Anne Montgomerie Traubel papers.
- Traubel, Horace, 1858-1919. Horace Traubel papers.
- Trist, Nicholas Philip, 1800-1874. Nicholas Philip Trist papers, 1795-1873.
- Truxtun, Thomas, 1755-1822. Thomas Truxton papers.
- Truxtun, Thomas, 1755-1822. Thomas Truxtun papers, 1796-1885.
- Tuck, Amos, 1810-1879. Amos Tuck papers.
- Turner, Ann Arnold Key, 1811-1884. Ann Arnold Key Turner papers.
- Turner, Daniel, 1796-1860. Daniel Turner papers.
- Turner family. Key-Cutts-Turner family papers, 1808-1975.
- Turner, Justin G. Justin G. Turner autograph collection, 1763-1968.
- Tyler, John, 1790-1862. John Tyler papers, 1691-1918.
- Tyler, Julia Gardiner, 1820-1889. Julia Gardiner Tyler papers.
- Tyler, Lyon Gardiner, 1853-1935. Lyon Gardiner Tyler papers.
U
- Ulysses S. Grant papers, 1819-1974.
- United States. Coast Guard. Historian's Office. U.S. Coast Guard. Historian's Office collection, 1746-1951.
- United States Constitution collection, 1773-1944.
- United States finance collection, 1761-1908.
- United States Naval Observatory records, 1830-1900.
- United States Naval Observatory. United States Naval Observatory records, 1830-1900.
- United States. War Dept. records, 1794-1848.
- United States. War Dept. United States. War Dept. records, 1794-1848.
- U.S. Coast Guard. Historian's Office collection, 1746-1951.
V
- Van Buren, Angelica Singleton, 1816-1877. Angelica Singleton Van Buren papers.
- Van Buren, John, 1810-1866. John Van Buren papers.
- Van Buren, Martin, 1782-1862. Martin Van Buren papers, 1787-1910.
- Van Voorhis, Daniel. Daniel Van Voorhis correspondence and reports. 1911-1913.
- Van Voorhis, Edith Burbank. Edith Burbank Van Voorhis correspondence. 1911-1913.
- Van Voorhis family. Burbank-Van Voorhis families papers, 1814-1913.
- VanderPoel, Halsted B. Halsted B. VanderPoel literary collection, 1815-1929.
- Vicente Sebastián Pintado papers, 1781-1842.
- Victor S. Clark papers, 1827-1944.
- Visual materials from the Blackwell family papers.
- Vitte, S. I︠U︡. (Sergeĭ I︠U︡lʹevich), graf, 1849-1915. Graf Sergeĭ I︠U︡lʹevich Vitte letter. 1893.
W
- Wade, Nicholas King, 1823-1899. Nicholas King Wade papers. 1856.
- Wade, William, 1789-1875. William Wade papers. 1840-1861.
- Wadsworth family. James Wadsworth family papers, 1730-1959.
- Wadsworth, James, 1768-1844. James Wadsworth family papers, 1730-1959.
- Wadsworth, James S. (James Samuel), 1807-1864. James S. Wadsworth papers.
- Wadsworth, James Wolcott, 1846-1926. James Wolcott Wadsworth papers.
- Wadsworth, James Wolcott, 1877-1952. James Wolcott Wadsworth papers.
- Wadsworth, William, 1761-1833. William Wadsworth papers.
- Walt Whitman papers, 1837-1957.
- Walt Whitman papers in the Charles E. Feinberg collection, 1763-1985.
- Ward family papers, 1831-1904.
- Ward family. Ward family papers, 1831-1904.
- Ward, James Thomas, 1820-1897. James Thomas Ward papers, 1838-1897.
- Ward, William Norvell, 1817-1881. William Norvell Ward papers.
- Warden, David Bailie, 1772-1845. David Bailie Warden papers.
- Warden, David Bailie, 1772-1845. David Bailie Warden papers, 1800-1840.
- Washington family collection, 1582-1965.
- Washington family. Washington family collection, 1582-1965.
- Washington, George, 1732-1799. George Washington papers. 1688-1896.
- Watterston, George, 1783-1854. George Watterston papers, 1809-1866.
- W.B. Bryan notes and newspaper extracts, 1789-1888.
- Webster, Daniel, 1782-1852. Daniel Webster papers, 1800-1900.
- Weik, Jesse William, 1857-1930. Jesse William Weik papers. 1830-1927.
- Welles, Edgar Thaddeus, 1843-1914. Diary of Gideon Welles, secretary of the navy under Lincoln and Johnson. 1911.
- Welles, Gideon, 1802-1878. Gideon Welles papers, 1777-1911.
- Welles, Gideon, 1802-1878. Lincoln and Seward; remarks upon the memorial address of Chas. Francis Adams, on the late Wm. H. Seward, with incidents and comments illustrative of the measures and policy of the administration of Abraham Lincoln, and views as to the relative positions of the late President and Secretary of State. 1874.
- West Florida collection, 1764-1848.
- West Florida. West Florida records.
- Wheeler H. Peckham family papers, 1838-1894.
- Whitall, Ann Cooper, 1716-1797. Ann Cooper Whitall papers.
- White, Walter C., d. 1837. James Knight and Walter C. White papers. 1825-1867.
- Whiting family. William Henry Whiting family papers, 1731-1952.
- Whiting, William Henry, 1843-1925. William Henry Whiting family papers, 1731-1952.
- Whitman, Walt, 1819-1892. Walt Whitman notes. 1850.
- Whitman, Walt, 1819-1892. Walt Whitman papers, 1837-1957.
- Whitman, Walt, 1819-1892. Walt Whitman papers in the Charles E. Feinberg collection. 1806-1981.
- Whitney & Burnham (New Orleans, La.) records, 1835-1851.
- Whitney & Burnham (New Orleans, La.). Whitney & Burnham (New Orleans, La.) records, 1835-1851.
- Wilcox, Cadmus M. (Cadmus Marcellus), 1824-1890. Cadmus M. Wilcox papers, 1846-1887.
- Wilde, Richard Henry, 1789-1847. Richard Henry Wilde papers, 1807-1867.
- Wilkes, Charles, 1798-1877. Charles Wilkes papers, 1607-1959.
- Willard, Henry A. (Henry Augustus), 1902-2002. Henry A. Willard II collection, 1743-1888.
- William Allen papers, 1796-1879.
- William B. Bradbury collection, 1846-1928.
- William B. Randolph papers, 1696-1884.
- William Bebb papers, 1705-1849.
- William D. Salter papers, 1810-1869.
- William Eustis papers, 1757-1908.
- William Goodell papers, 1818-1917.
- William Henry Harrison papers, 1734-1939.
- William Henry Whiting family papers, 1731-1952.
- William Medill papers, 1834-1864.
- William Plumer papers, 1774-1845.
- William R. Shepherd papers, 1554-1931.
- William Sampson papers, 1806-1849.
- William Short papers, 1778-1853.
- William Sydney Thayer papers, 1835-1901.
- William T. Sherman papers, 1759-1897.
- William Tappan autograph collection, 1640-1939.
- William Thornton papers, 1741-1865.
- William Vans Murray papers, 1778-1805.
- William Wirt papers, 1802-1858.
- Williams family. John Warren Williams family papers, 1839-1895.
- Williams, George F., 1817-1882. George F. Williams account book. 1864-1882.
- Williams, John Warren, 1815-1843. John Warren Williams family papers, 1839-1895.
- Williams, Martha Ann Tilton, 1827-1919. Martha Ann Tilton Williams travel journal. 1894-1895.
- Winslow, Francis, 1818-1862. Francis Winslow papers, 1833-1863.
- Wirt, William, 1772-1834. William Wirt papers, 1802-1858.
- Woodbury, Charles Levi, 1820-1898. Charles Levi Woodbury papers.
- Woodbury, Elizabeth Williams Clapp. Elizabeth Williams Clapp Woodbury papers.
- Woodbury family. Levi Woodbury family papers, 1638-1914.
- Woodbury, Levi, 1789-1851. Levi Woodbury family papers, 1638-1914.
- Woodbury, Levi, 1789-1851. Levi Woodbury papers.
- Woodbury, Levi, fl. 1780-1781. Levi Woodbury logbooks. 1780-1781.
- Woodhouse, Henry, 1884- Henry Woodhouse collection relating to George Washington, 1656-1930.
- Wright, Elizur, 1804-1885. Elizur Wright papers, 1793-1935.
- Wright family. Nathaniel Wright family papers, 1787-1917.
- Wright, Irene Aloha, 1879-1972. Irene Aloha Wright papers, 1620-1977.
- Wright, Nathaniel, 1789-1875. Nathaniel Wright family papers, 1787-1917.
- W.W. Corcoran papers, 1791-1896.