- "Smart" Road Citizen's Advisory Committee Records, 1993/199711
- 1x1 Japan Exhibition Materials, 1965-2024, 20245
- A. Jane Duncombe Architectural Papers, 1952/20021
- Abbye A. Gorin Architectural Collection, 1940/2006, bulk 1995/20061
- Alfred C. Payne Collection, 1917/200345
- Alleghany Chapter, National Society of the Daughters of the American Revolution Records,, 1890/20222
- American Egg Board Collection, 1974/200410
- American Work Horse Museum Collection,, 1971/19991
- Andrea Maxine Lucas Architectural Collection, 1980/20038
- Ann A. Hertzler Collection, 1863/2013, bulk 1974/200013
- Anna P. Sokolina Architectural Collection, 1924/20192
- Anne Price Yates Papers II, 1898/20051
- Antoine Gaujot and Julien E. Gaujot Papers, 1840/19993
- Association for the Preservation of Virginia Antiquities, Montgomery County Branch Papers, 1754/1996, bulk 1958/19831
- Audrey Emmons Architectural Collection, 1974/19973