- 19th Century Virginia albumen photographs, 1880/18993
- 6th Battery of Binghamton, N.Y. Veterans minute book, 1871/19112
- A. H. Hand Papers, 1835/20092
- A. K. Leake Papers, 1872/19403
- A. Willis Robertson Papers, 1921/1988, bulk 1946/19663
- Abolitionist Movement Collection, 1834/18881
- Abraham Rudisill diary, 1875/18862
- Accounts, 19th Century, 1836/18971
- Adam Empie Papers, 1811/2004, bulk 1811/18503
- Adams Papers, 1782/18902
- African American Family Photographs, 1880/19602
- African American Stereoview Collection, 1860/19011
- Alabama Collection, 1823/18932
- Albert C. Swindler Papers, 1862/1929, bulk 1862/18642
- Albert P. Bourland Letter, 18852