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Creator
- struble, richard a.25
- guy, donald e.8
- ohio. division of geological survey5
- hull, dennis n. 1948-4
- white, george w. (george willard), 1903-19854
- hansen, michael c.3
- hull, dennis n.3
- risser, michele3
- geological survey of ohio2
- alkire, robert l. 1910-1
- baranoski, mark t.1
- bier, james allen.1
- bownocker, j. a. 1865-19281
- brockman, c. scott1
- calvert, warren l.1
- duffield, susan l.1
- flint, norman k. 1921-1
- ford, john philip1
- forsyth, jane l. 1921-1
- goldthwait, richard p. 1911-19921