- Powell, Richard L., cartographer.2
- Quinn, E. J. (Edward J.)2
- Roberts, W. A. (Soil surveyor)2
- Switzer, J. E.(Jesse Elmer), cartographer.2
- Tharp, W. E. (William Edgar),cartographer,surveyor.2
- Tharp, W. E.(William Edgar), cartographer.2
- Walker, Alfred C.2
- Weber, Licia2
- Wier, Charles E. (Charles Eugene), 1921- cartographer.2
- Adams, J. E. (James Edward), 1898-1
- Ahlgrim, M. J., cartographer.1
- American Central Railway Company.1
- Amstutz, N. S. (Noah Steiner), 1864-1
- Anderson, K. Russell1
- Aretz, R.1
- Ashley, Geo. H. (George Hall), 1866-19511
- Baldwin, Frank M., cartographer.1
- Ball, T. H.(Timothy Horton), 1826-1913, cartographer.1
- Barnes, Elmer (Soil surveyor)1
- Bartholomew, John, 1831-18931