- American Legion. Richland Post No. 6 (Columbia, S.C.)7
- American Optical Company, Southbridge, Massachusetts2
- American Optical, Inc.1
- Amman3
- Ammin, M.1
- Ancrum, William5
- Anderson, Joseph H. (Photographer)1
- Arias, Edgar F.1
- Arnold, Jim1
- Art Photo Greeting Company1
- Asheville Post Card Co.2
- Asheville Post Card Company6
- Assmus1
- Atkins Landing4
- Attributed to Milo Hoyt Berry (1819-1907)1
- Auburn Post Card Mfg. Co.1
- Azalea Woods2
- Babb, Roy2
- Bache, A.D. (Alexander Dallas), 1806-18673
- Bachety, Paige1