- A. J. Davis Family Collection, 1874/2007, bulk 1874/19077
- Aaron Family Collection, 1908/19271
- Abraham Lincoln, 19221
- Adam Finch Collection, 1891/19332
- Adam T. Finch Papers, 1895/19262
- Adin B. Underwood Papers,, 1861/19262
- Adolph Samuel Bair Photographs1
- African-American Tenant Farmer Photographs, Clarksville, Virginia, 1920/19302
- Agricultural Extension Service Records, 1914/19801
- Al Gross Papers, 1909/20002
- Alan Campbell Cameron Papers, 1914/19222
- Albert L. Sturm Papers, 1904/19885
- Alexander Farish Robertson Papers, 1867/193121
- Alfred C. Payne Collection, 1917/20034
- Alfred W. Lawson Collection, 1913/19481