- Highton, Lincoln (photographer)36
- Cooley, Sam A."(Samuel A."(Photographer)30
- U.S. Forest Service28
- King, Bill (photographer)27
- Nowell, F. A. (Photographer)26
- Hillers, John K., 1843-1925.24
- Soule, John P. (Photographer)23
- Sargeant Studios (Photographer)21
- Winter, Joseph E. (1920-1992)21
- Post, Marion (photographer, Farm Security Administration)20
- Tichnor Bros, Inc.19
- Wearn, Richard19
- Cook, George S. (Photographer)17
- Haskell, Franklin Aretas (photographer)17
- Quinby & Co. (Publisher)17
- Keystone View Company (Publisher)16
- Kilburn, B. W. (Benjamin West) (Photographer)16
- Souder, S.T. (Photographer)16
- Cook, Geo. L. (Photographer)15
- Havens, O. Pierre (Photographer)15