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Keyes, Charles Rollin (26 December 1864–18 May 1942), geologist, mining engineer, and publisher, was born in Des Moines, Iowa, the son of Calvin Webb Keyes, a wealthy merchant and entrepreneur, and Julia Baird Davis. Keyes entered the State University of Iowa in 1883, securing his bachelor’s degree in 1887 and, after leaving the campus, his A.M. in 1890....