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Author/Creator
- United States. Congress. House68
- United States. Geological Survey49
- Geological Survey (U.S.), issuing body21
- United States. Congress. House. Committee on Mines and Mining17
- Geological Survey (U.S.)15
- Brooks, Alfred H., (Alfred Hulse)13
- Henderson, Charles W.12
- Hess, Frank L.12
- United States. Congress. Senate12
- Dunlop, J.P.11
- Gerry, C.N.11
- United States11
- Burchard, Ernest F., (Ernest Francis)10
- Calumet and Hecla Mining Company10
- Diller, J. S. (Joseph Silas), 1850-192810
- Project Muse10
- Butler, B. S. (Bert Sylvenus), 1877-19609
- Day, David T., (David Talbot)9
- Knopf, Adolph, 1882-19669
- McCaskey, H.D., (Hiram Dryer)9