- "Scenes from Behind the Wall: Images of East Germany, 1989/90" exhibit collection, 1989/20121
- 1x1 Japan Exhibition Materials, 1965-2024, 20244
- A. E. Dick Howard papers, 1928/201740
- A. H. Hand Papers, 1835/20091
- A. Patrick L. Prest, Jr. papers, 1941/20145
- ALIVE (ALexandrians InVolved Ecumenically) Records (MS300), 1969/19951
- Abraham Anson papers, 1939/200512
- Academic Affairs: Academic Program Reviews, 1976/2018, bulk 1992/20183
- Academic Departments - Record Group 93
- Across the Way Productions, Inc., 2002-201612
- Adam Empie Papers, 1811/2004, bulk 1811/18501
- Admiral Thomas J. Lopez Papers, 1973/20144
- Advisory Committee Research Collection, 1772/201711
- Africana Studies Program records, 1996/20141
- Agnes Wolf papers, 1966/200636