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Creator
- Indiana. Geological Survey10
- Gray, Henry Hamilton, 1922-5
- Wayne, William J. (William John), 1922-5
- Illinois State Geological Survey4
- Keller, Stanley J.4
- Wier, Charles E. (Charles Eugene), 1921-4
- Hutchison, Harold C. (Harold Christy), 1925-3
- Patton, John B. (John Barratt), 1915-3
- Powell, Richard L.3
- Forsyth, Jane L. (Jane Louise), 1921-2
- Johnson, Gerald H.2
- Moran, W. H. (William H.)2
- Murray, Haydn H. (Haydn Herbert), 1924-2
- Schneider, Allan F. (Allan Frank), 1926-2
- Atherton, Elwood, 1909-1
- Bleuer, N. K. (Ned Kermit), 1943-1
- Burger, Ann M.1
- Cazee, J. T. (James T.)1
- Cox, E. T. (Edward Travers), 1821-19071
- Eggert, Donald L.1