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Creator
- Geological Survey (U.S.)104
- Renshawe, John H.39
- Hawkins, Geo. T. (George T.)34
- Goodlove, C. W.27
- Herron, W. H. (William Harrison), 1865-27
- Marshall, R. B. (Robert Bradford), 1867-194924
- Illinois State Geological Survey20
- United States. Army. Corps of Engineers18
- McKinney, R. C. (Robert C.)14
- U.S. Coast and Geodetic Survey14
- U.S. Lake Survey13
- Ellis, J. R. (Topographer)11
- Kentucky Geological Survey10
- Gehres, W. S. (Wilmer Sherman), 1887-19639
- United States. Army Map Service9
- Cooke, Chas. E. (Charles E.)8
- Sadler, C. L.8
- Herrington, R. M. (Russell McKee), 1890-19777
- Griffin, W. H. (William H.)6
- McKinley, W. K. (William Klett), 1891-19646