- Ardit1
- Armstrong, McLellan & Green1
- Army YMCA 1
- Arnstein1
- Asheville Postcard Co., Asheville, N.C1
- Assmus1
- Associated Studios (Photographer)1
- Atkinson, A.1
- Aunt Jane1
- Aurora Postcard Company1
- Austin, W. B.1
- B.W. Kilburn1
- Babbitt, Howard S., Jr. (Photographer)1
- Bachrack Studios, New York, Philadelphia, Baltimore, Washington1
- Bacon, William, 1873-19081
- Bahr, D. H.1
- Baker, Mary Ellen (author)1
- Baldwin, Lina-Hamilton1
- Ballou, Maturin M. (Maturin Murray), 1820-18951
- Banks, C. R. (photographer)1