- Alexander Hugh Holmes Stuart Account Books, 1837/18572
- Alexander M. Davis Papers, 1850/18922
- Alfred Parkins Ledgers, 1845/18541
- Allen-Kean-Laurence family letters, 1837/19602
- Alumni Association Records, 1833/2014, bulk 1950/20055
- Amos Johnson Ledgers, 1808/1861, bulk 1808/18211
- Amos Koontz Papers I, 1809/1965, bulk 1936/19652
- Ann Lettice Murdoch diary, 1841/18641
- Annie Haseltine Judson Chiles Autograph Album, 1850/18542
- Appomattox Manor Music Collection, 1800/1940, bulk 1850/19101
- Archibald Stuart Ledgers, 1757/18521
- Archibald Woods Papers, 1777/1846, bulk 1783/184611
- Armistead Papers, 1736/18971
- Armistead-Cocke Papers, 1680/19174
- Attorney's Account Book (Grayson and Wythe Counties, Va.), 1847/18592