- Alexandria (Va.). Department of Housing and Community Development1
- Alexandria (Va.). Department of Planning and Urban Renewal1
- Alexandria (Va.). Office of City Engineer1
- Allen family1
- Amanda Hall Rare Books1
- Ambler, Charles Henry, 1876-19571
- Amherst, Jeffery Amherst, Baron, 1717-17971
- Anderson, Ellen Graham1
- Andrews, Mason Cooke (1919-2006)1
- Andrews, Robert, 1743?-18041
- Andros, Edmund, Sir, 1637-17141
- Anglican Clergy1
- Archer, William Segar, 1789-18551
- Armistead Family1
- Ashcraft Family1