- African American Family Photographs, 1880/19601
- African American Family photograph album, 1910/19601
- African American Hugh Carr family, River View Farm, and the Papers of the Ivy Creek Foundation, 1916/19881
- African American Photographic Portraits, 1880/19531
- African and African American photograph collection, 1850/19451
- Agricultural Extension Service Records, 1914/19801
- Al Gross Papers, 1909/20001
- Alan Campbell Cameron Papers, 1914/19221
- Alan Clarke Railroad Research Papers, 1861/20121
- Alan R. Shirkey photograph collection, 1877/19171
- Albert Blakeslee White (1856-1941) Papers, 1888/19291
- Albert C. Swindler Papers, 1862/1929, bulk 1862/18641
- Albert Frederick Wilson papers, 1840/19341
- Albert L. Sturm Papers, 1904/19881
- Albert M. Reese (1872-1965) Papers, 1873/19541