Collection
- A. Willis Robertson Papers1
- A.B. Stickney, Compiler, Genealogical Materials1
- A.E.S. Stephens Papers1
- A.J. Morrison Collection1
- A.S. Hammack papers1
- A.W. Yost, Compiler1
- Aaron Chipps, Coal Miner, Papers1
- Abbye A. Gorin Architectural Collection1
- Abraham Anson papers2
- Abraham Lincoln Collection1
- Ada Haldeman Ford, Suffragist, Papers1
- Adalbert J. Volck Collection of Etchings1
- Adam Empie Papers1
- Adams T. Rice papers2
- Addison H. Smith papers1