Collection
- 15th Virginia Infantry History2
- 17th Precinct (The Bowery), New York City Police Blotter,1
- 42nd Virginia Infantry Muster and Descriptive Roll2
- A New Bird's Eye View of the Seat of War1
- A. E. Wood Letter2
- A. J. Davis Family Collection1
- Adin B. Underwood Papers,3
- Alexander Floyd Wall Correspondence2
- Alexander H. Davidson Letter2
- Alexander McNutt Glasgow Family Papers6
- Alexander Von Humboldt Portrait Print1
- Alexander Welch Reynolds Letter2
- Alexandria and Fairfax Counties [Virginia] Civil War Correspondence39
- Alonzo D. Cushing Letters2
- Amon W. Updike Correspondence2