- Armistead Boothe Papers (MS164), 1803/19904
- Armistead Papers, 1736/18971
- Armistead-Cocke Papers, 1680/19174
- Armstead L. Robinson papers, 1848/2001, bulk 1967/19922
- Ashcraft Family Genealogy, 1732/19721
- 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- Assorted Monongalia County, West Virginia, Historical Documents, 1827/19491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
- Augusta County and Bath County, Virginia, Receipts, 1780/18482
- Aurora, Preston County Papers, 1754/19001
- Austin-Twyman Papers, 1765/193956
- B. J. Spruell Account Book, 1782/18362
- Baer Family Papers, 1744/19291
- Bailey-Law Collection, 1825/19713
- Baird Family Papers, 1656/1922, bulk 1656/18483