- "Arts in Virginia" (PB-04), 1960/19931
- A. E. Dick Howard papers, 1928/20173
- A. Jane Duncombe Architectural Papers, 1952/20022
- A. Patrick L. Prest, Jr. papers, 1941/20145
- A. Rufus Tonelson Papers, 1922/19751
- ALIVE (ALexandrians InVolved Ecumenically) Records (MS300), 1969/19954
- Abraham Anson papers, 1939/20056
- Adele Blow Chatfield-Taylor family papers, 1899/19772
- Adele Goodman Clark papers, 1849/19781
- Admiral Thomas J. Lopez Papers, 1973/20142
- Agnes Wolf papers, 1966/20061
- Alan Bowne papers, 1964/1991, bulk 1980/19892
- Alan Clarke Railroad Research Papers, 1861/20121
- Albert J. Wasserman Papers, 1925/20032
- Albert L. Sturm Papers, 1904/19886