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Creator
- Geological Survey (U.S.)20
- Goodlove, C. W.9
- Hawkins, Geo. T. (George T.)9
- Illinois State Geological Survey9
- Renshawe, John H.9
- United States. Army Map Service5
- Herron, W. H. (William Harrison), 1865-4
- Marshall, R. B. (Robert Bradford), 1867-19494
- Tweedy, Frank, 1854-19374
- U.S. Coast and Geodetic Survey4
- United States. Army. Corps of Engineers4