- Ashford Brown Papers, Archives, 1831/18431
- Association for the Preservation of Virginia Antiquities, Montgomery County Branch Papers, 1754/1996, bulk 1958/19831
- Assorted Monongalia County, West Virginia, Historical Documents, 1827/19491
- Assorted Morgan County Records, 1820/18541
- Athletics, 1830/20251
- Atkeson-Morgan Family Papers, 1833/1923, bulk 1850/190010
- Aubrey E. Strode papers, 1861/19691
- Augusta County (Va.) Secession Debate Record, 1833 January 10, 18331
- Augusta County and Bath County, Virginia, Receipts, 1780/18482
- Aurora, Preston County Papers, 1754/19001
- Austin-Twyman Papers, 1765/193963
- Ayres Papers, 1833/18552
- B. G. D. Moxley Account Book, 1829/18352
- B. J. Spruell Account Book, 1782/18362
- Baer Family Papers, 1744/19291