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Creator
- Geological Survey (U.S.)31
- Goodlove, C. W.[remove]31
- Hawkins, Geo. T. (George T.)25
- Renshawe, John H.23
- Gehres, W. S. (Wilmer Sherman), 1887-19637
- Herrington, R. M. (Russell McKee), 1890-19777
- Herron, W. H. (William Harrison), 1865-7
- Kentucky Geological Survey7
- Marshall, R. B. (Robert Bradford), 1867-19497
- U.S. Coast and Geodetic Survey7
- Ellis, J. R. (Topographer)5
- United States. Army. Corps of Engineers5
- Blair, H. B. (Herbert Buxton), 1860-19052
- Lovell, W. H. (William H.)2
- McKinney, R. C. (Robert C.)2
- United States. Army2
- Wilson, Herbert M. (Herbert Michael), 1860-19202