- Atlanta University Center Robert W. Woodruff Library1
- Atlanta, Birmingham & Atlantic Railroad Company1
- Atlanta-Fulton County Joint Planning Board (Atlanta, Ga.)1
- Audas, Tuttle H. (Tuttle Hudson), 1795-1868 (Clerk, Hancock County Superior Court, third party)1
- Augustin, John1
- Avery, Andrew, fl. 1934-19501
- Ayala, Karissa1
- Ayer and Harrison1
- Baber family1
- Baber-Blackshear family1
- Bachtel, Doug 11
- Bailey, David Jackson, 1812-18971
- Bailey, M. Bobbie1
- Bailey, Russell1
- Baker, James1
- Baldowski, Clifford H., 1917-1
- Baldwin, Abraham, 1754-18071
- Baldwin, Ethel Ruth1
- Ball, Lamar Quintero1
- Ball, Milner S.1
