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Creator
- Cooke, Chas. E. (Charles E.)1
- Ellis, J. R. (Topographer)3
- Gehres, W. S. (Wilmer Sherman), 1887-19632
- Geological Survey (U.S.)27
- Goodlove, C. W.2
- Hawkins, Geo. T. (George T.)2
- Herrington, R. M. (Russell McKee), 1890-19772
- Herron, W. H. (William Harrison), 1865-3
- Illinois State Geological Survey10
- Indiana. Department of Conservation2
- Kentucky Geological Survey2
- Kentucky. Department of Mines and Minerals1
- Kilmartin, J. O. (Jerome O'Farrell), 1900-19791
- Lloyd, W. J. (Topographer)1
- Marshall, R. B. (Robert Bradford), 1867-19493
- McKinley, W. K. (William Klett), 1891-19644
- Michigan. State Highway Department2
- Smith, L. Scott1
- Tweedy, Frank, 1854-19371
- U.S. Coast and Geodetic Survey3