- 144th Regiment Militia (Va.) Order Book, 1834/18431
- A Calendar of The Jefferson Papers of the University of Virginia1
- A. E. Dick Howard papers, 1928/20171
- A. H. Hand Papers, 1835/20092
- A. Willis Robertson Papers, 1921/1988, bulk 1946/19661
- A.B. Stickney, Compiler, Genealogical Materials, 1838/19591
- A.C.L. Gatewood Papers, 1801/19191
- A.J. Morrison Collection, 1754/19751
- Abner Johnson Leavenworth Papers, 1825/18618
- Abolitionist Movement Collection, 1834/18881
- Abraham Grove Account Book, 1815/18502
- Account Book, 1838/18392
- Account Books, 1782/18952
- Accounts, 19th Century, 1836/18971
- Ackerly Family Papers2