Charles Terry du Rell died on 27th February, 1958, in Pomona, California. He was about 85.
Mr. du Rell was born at Vermont, Illinois, and between 1888 and 1891 was engaged on mine and mill work in various capacities before training at the Colorado School of Mines. He graduated E.M. in 1895 and worked for a few months at Teluride as assistant superintendent at Mt. Wilson Gold and Silver Mining Co., then joined Limbach and Durell, mining engineers and U.S. Department mineral surveyors at Cripple Creek, Colorado. He left America for two years to work in South Africa as surveyor and chemist at Sheba mine, Eureka City, from 1896 to 1897, and then as surveyor to Porges Randfontein and South Randfontein mines, Transvaal, until September, 1898. On his return to the United States he was engaged for a year on mine examination in Denver before taking up the post of assistant superintendent at Yellow Aster mine, Randsburg, California, in 1899.
Mr. du Rell spent several years in Montana, working first at Spotted Horse mine in Maiden, then managing Central Montana Mines Co. He became manager also of St. Paul-Montana Mining Co., and general manager of Chicago-Montana Gold Mining Co. at Gilt Edge, operating the Big Six mines and Whiskey Gulch mine and mill. He was also general manager of Federal Gold Mines Co.
From 1905 to 1906 he was engaged as a partner in a general mining engineering concern in Nevada, and between 1906 and 1907 worked in California as superintendent of Death Valley Mining Co. and general superintendent of Arcalvada Mining Co., shipping silver to smelters in Salt Lake. He also did consulting work for Homestake Gold Mining Co. during this period. In 1907 Mr. du Rell joined a syndicate to investigate gold properties in the Philippine Islands, and on his return set up a consulting engineering practice in California and managed mines for Headwaters Mining Co. until 1911. Mr. du Rell toured Australia in 1911-12 and devoted the remaining months of 1912 to research work on flotation and patent applications at the Colorado School of Mines. He was appointed general manager of Imperial Rediction Company in California in 1913 and opened up the gold mine and constructed and operated the complete milling and cyanide plant during the next two years. From 1916 to 1917 he worked as consulting engineer to International Magnesite Co. and other firms in California, but in 1918 was commissioned in the Corps of Engineers in the U.S. Army and worked on construction in Virginia.
In 1919 Mr. du Rell went to Washington, D.C., to work for a year at the U.S. Bureau of Standards on coal cleaning research and power reduction investigation; he remained in Washington on his appointment as senior valuation engineer at the Bureau of Internal Revenue, Treasury Department. In this position Mr. du Rell had charge of depreciation study and publication. He retired in 1937 to make his home at Redondo Beach, California.
Mr. du Rell was elected a Member of the Institution in 1905. He was a Legion of Honour Member of the American Institute of Mining, Metallurgical and Petroleum Engineers, and had also been a member of the American Society of Civil Engineers.
Vol. 68, Trans IMM 1958-59, pp.547-48
