- Arithmetic Notebook, I, 1780/18201
- Armistead Papers, 1736/18971
- Armistead-Cocke Papers, 1680/19174
- Armstead L. Robinson papers, 1848/2001, bulk 1967/19921
- Ashcraft Family Genealogy, 1732/19721
- Association for the Preservation of Virginia Antiquities, Montgomery County Branch Papers, 1754/1996, bulk 1958/19832
- Augusta County and Bath County, Virginia, Receipts,, 1780/18482
- Augusta County, Va. Ledger, 1801/18082
- Augusta County, Va. School Ledger, 1883/19081
- Aurora, Preston County Papers, 1754/19001
- Austin-Twyman Papers, 1765/193931
- B. J. Spruell Account Book, 1782/18362
- Baer Family Papers, 1744/19291
- Baird Family Papers, 1656/1922, bulk 1656/18481
- Baker Family Papers
1781-19217