Collection
- Accounts, 19th Century1
- Ackerly Family Papers4
- Adalbert J. Volck Collection of Etchings1
- Adam Empie Papers2
- Adam F. Carpenter Letter2
- Adam and Wayman Collins Confederate Vouchers2
- Adams Papers2
- Adee Family Papers2
- Adelaide Colcock Papers2
- Adele Goodman Clark papers4
- Adin B. Underwood Papers,3
- Administration records collection12
- Admiral John Randolph Tucker Papers2
- Admiral Porter's Fleet Running the Rebel Blockade of the Mississippi at Vicksburg, April 16, 18631
- Adolphus DeBussey, Soldier, Civil War Letters34