- Association for the Preservation of Virginia Antiquities. Yorktown Branch1
- Association of Collegiate Scholars in Architecture1
- Association of Women Students1
- Astor, Nancy Witcher Langhorne Astor, Viscountess, 1879-19642
- Astor, Nancy Witcher Langhorne, Viscountess1
- Astoria Beneficial Club1
- Atherton, Frederick1
- Athey family1
- Athletic Association1
- Atkins, Anna Blanche Shue, 1918-20101
- Atkins, Georgia (Skinnell), 1886-19681
- Atkins, John G., 1884-19451
- Atkins, Mildred1
- Atkins, Paul A.1
- Atkinson, Edward1