found: Leaching of caved areas, Ohio Copper Mine, 1923:t.p. (Thomas Varley)
found: Research investigations for the year 1923-1924, including hydrometallurgy of zinc, investigations of Utah hydrocarbons, ore deposits of Promontory Point District, complex ores of Park City District, 1925:title page (transmitted by Thomas Varley, Matallurgist in charge)
found: Varley & Swain genealogy, website viewed February 25, 2019(Thomas Varley, 1877-1952; born in Bountiful, Utah on November 12, 1877; student at University of Utah, 1904-1907; married Charlotte Louise Griggs, nicknamed "Lottie" June 26, 1907; mining engineer in Utah through 1912; moved to Seattle, Washington to work for the U.S. Bureau of Mines; transferred to Salt Lake City in mid-1918 and bought a house in Salt Lake City; Superintendent of the Bureau of Mines in Salt Lake and also affiliated with the University of Utah Metallurgy Department; degrees in metallurgy and mineralogy from the University of Utah; died June 1952 in Salt Lake City)
found: FamilySearch, February 25, 2019(Thomas Varley; born 12 November 1879 in Bountiful, Davis, Utah; died 13 June 1952 in Salt Lake City, Salt Lake, Utah)