Creator
- Sirigo, John.1
- Sissman Studio Pittsburgh.1
- Skag's (Waukegan, Ill.)1
- Skerrett, R. G.1
- Sketchley, Arthur, 1817-1882.30
- Skinner, Bud4
- Skinner, Bud.1
- Skog, E. W.2
- Skypek, Dora Helen1
- Slagle, Bear1
- Slate Co. (Hyannis, Mass.)1
- Slater's Interurban Post Card Studio (Toledo, Ohio)2
- Slaughter, J. H.1
- Slaughter, Montgomery1
- Sleet, M. J., Jr.1
- Sleet, Moneta, 1926-1996.9
- Sliney, David10
- Sloan, John A. (John Alexander), 1839-1886.1
- Slursa (N.Y.)1
- Small, John B., 1845-1905.1