- Sanborn Map Company1
- Sauer Bros. and Frydrych.1
- Schlatter, Wm. (William)1
- Schoolcraft County Road Commission1
- Scott Engineering Company (Alpena, Mich.)1
- Smith, Ralph A. (Cartographer)1
- Smith, Richard A., 1876-1963.1
- Smith, Robert Pearsall, 1827-18981
- Smith, Shirley Wheeler, 1875-19591
- Society for the Diffusion of Useful Knowledge (Great Britain)1
- Southeastern Michigan Tourist and Publicity Association1
- Sportsman's County Map Service1
- Steinwehr, A. von (Adolph), 1822-18771
- Stenglein Printing Company1
- Stockslager, S.M.1
- Stratton, J. F. (Jonathan F.),N. Currier (Firm)1
- Surveyor General for Ohio, Indiana and Michigan.1
- Tanner, Henry Schenck1
- Tanner, Henry Schenck, 1786-1858 [sculptor]1
- Tomble, Fremont J., land office manager.1