- "The Negro" Lithograph, 1840/18691
- 19th century newspaper illustrations collection, 1839/18941
- A. & R. Fisher Paper Company Ledger, 1840/18511
- A. Glass Account Book, 1844/18621
- A. H. Hand Papers, 1835/20091
- A.B. Stickney, Compiler, Genealogical Materials, 1838/19591
- A.C.L. Gatewood Papers, 1801/19191
- A.J. Morrison Collection, 1754/19751
- Abner Johnson Leavenworth Papers, 1825/18611
- Abner Osburn, Physician, Papers, 1846/19011
- Abolitionist Movement Collection, 1834/18881
- Abraham Grove Account Book, 1815/18501
- Account Books, 1782/18951
- Accounts, 19th Century, 1836/18971
- Adam Empie Papers, 1811/2004, bulk 1811/18501