Collection
- A. Jane Duncombe Architectural Papers3
- A. Patrick L. Prest, Jr. papers17
- A. Rufus Tonelson Papers17
- A. Willis Robertson Papers1,311
- A.B. Sharp, Compiler, Barr Family Genealogy1
- A.J. Morrison Collection1
- Abbye A. Gorin Architectural Collection2
- Abraham Anson papers56
- Abraham Lincoln Collection1
- Academic Departments - Record Group 91
- Ackerly Family Papers7
- Ada Haldeman Ford, Suffragist, Papers1
- Adagio Press Collection4
- Adalbert J. Volck Collection of Etchings4
- Adam Empie Papers3