Collection
- A. Rufus Tonelson Papers17
- A. S. Lara papers1
- A. Willis Robertson Papers1,192
- A.B. Stickney, Compiler, Genealogical Materials1
- A.E.S. Stephens Papers9
- A.J. Morrison Collection1
- Abbye A. Gorin Architectural Collection2
- Abraham Anson papers54
- Abraham Lincoln Collection1
- Academic Departments - Record Group 92
- Ackerly Family Papers12
- Ada Haldeman Ford, Suffragist, Papers1
- Adagio Press Collection2
- Adalbert J. Volck Collection of Etchings4
- Adam Empie Papers3