- "Young Eph's Lament" Song Sheet, 1850/18991
- 19th Century Virginia albumen photographs, 1880/18991
- 6th Battery of Binghamton, N.Y. Veterans minute book, 1871/19111
- A. E. Dick Howard papers, 1928/20171
- A. H. Hand Papers, 1835/20091
- A. J. Davis Family Collection, 1874/2007, bulk 1874/19078
- A. K. Leake Papers, 1872/19402
- A. S. Lara papers, 1856/18611
- A. Willis Robertson Papers, 1921/1988, bulk 1946/19664
- A.P. Woodward Records, 1886/19071
- Account Ledger and Diary (Upstate New York), 1886/1907, bulk 1890/19001
- Acker Family Diaries, 1880/19062
- Adalbert J. Volck Collection of Etchings, 1861/19793
- Adam Empie Papers, 1811/2004, bulk 1811/18502
- Adams Papers, 1782/18901