- A. H. Hand Papers, 1835/20091
- AEOC Society Minute Book, 1832/18371
- Abner Johnson Leavenworth Papers, 1825/18611
- Abolitionist Movement Collection, 1834/18881
- Abraham Grove Account Book, 1815/18501
- Account Book, Richmond, Virginia, 1824/18361
- Adam Empie Papers, 1811/2004, bulk 1811/18501
- Adam Empie letters, 1833/18371
- Adam Rinica and George Rinica Account Book, 1822/18481
- Adams Papers, 1782/18901
- Addie Rogers Bound Sheet Music Collection, 1827/18601
- Agreement between F. P. Blair and Charles Mason, 18351
- Alabama Collection, 1823/18931
- Alexander Brown Papers (I), 1815/19101
- Alexander Brown Papers (II), 1748/19001