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Creator
- Geological Survey (U.S.)20
- Goodlove, C. W.12
- Hawkins, Geo. T. (George T.)10
- Kentucky Geological Survey8
- Ellis, J. R. (Topographer)7
- Gehres, W. S. (Wilmer Sherman), 1887-19637
- Herrington, R. M. (Russell McKee), 1890-19777
- Herron, W. H. (William Harrison), 1865-7
- Marshall, R. B. (Robert Bradford), 1867-19497
- U.S. Coast and Geodetic Survey7
- United States. Army. Corps of Engineers6
- Renshawe, John H.5
- Illinois State Geological Survey4
- Cooke, Chas. E. (Charles E.)2
- Lloyd, W. J. (Topographer)2
- Marean, Herbert W.2
- Smith, L. Scott2
- United States. Army2
- Wilson, Herbert M. (Herbert Michael), 1860-19202
- Ashley, Geo. H. (George Hall), 1866-19511