Collection
- Ewing family papers, 1773-1937 (majority within 1773-1866)1
- Farley family papers, 1761-1902 (majority within 1781-1856)1
- Fitzhugh Lee papers, 1914-1927 (majority within 1916-1927)1
- Frank J. Hecker papers, 1868-1908 (majority within 1898-1905)1
- Frederick Mackenzie papers, 1760-17831
- George W. and Marguerite Harms papers, 1909-19851
- George Wray papers, 1770-18481
- Henri César, marquis de Castellane Majastre papers, 1713-18281
- Henry and Thomas Rowson collection, 1807-18141
- Horace Miner collection, 1941-1992 (majority within 1941-1945)1
- James Douglas papers, 1738-1850 (majority within 1738-1787)1
- James G. Miller documents, 1863-18641
- James Leonard Sturgeon collection, 1900-1967 (majority within 1900-1920)1
- James McHenry papers, 1777-18321
- James Moncrieff papers, 1710-1894 (majority within 1780-1804)1
- Jean Rousselin collection, 1791-18141
- Jeffery Amherst papers, 1758-17641
- John Graves Simcoe papers, 1774-1824 (majority within 1774-1804)1
- John Herries collection, 1814-1815, [1851?]1
- Joseph J. Tuttle papers, 1831-1963 (majority within 1854-1918)1