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Ashburner, Charles Albert (09 February 1854–24 December 1889), geologist and mining engineer, was born in Philadelphia, Pennsylvania, the son of Algernon Eyre Ashburner, a shipbuilder, and Sarah Blakiston. Charles Ashburner obtained his college education at the Towne Scientific School of the University of Pennsylvania and ultimately was granted a total of three baccalaureate and advanced degrees by his alma mater. In June 1874 he received his B.S. degree in civil engineering and graduated valedictorian of his class. Three years later he was awarded an M.S. degree in geology. Upon recommendation of the faculty, in recognition of his outstanding career and accomplishments, Ashburner became the first member of the alumni to receive an honorary D.Sc. degree, in June 1889....

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Emmons, Samuel Franklin (29 March 1841–28 March 1911), geologist, mining engineer, was born in Boston, Massachusetts, the son of Nathaniel Henry Emmons, a merchant engaged in East India and China trade, and Elizabeth Wales. After graduating from Harvard College in June 1861, Emmons was persuaded by his family to accompany his ailing mother to Europe rather than enlist in the Union army. Emmons stayed in Europe, attending the École Impériale des Mines at Paris from 1862 to 1864. Attracted by the practical aspects of mining engineering and the proximity of mines, he entered the Bergakademie Freiberg, Saxony, in the summer of 1864. A year of study was followed by a year of traveling through Europe visiting important mining centers, after which he returned home to Boston in June 1866....

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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....