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Coates was a contractor and smelter in the LEAD mines around Dubuque. He later traveled to California in 1852 and worked in the mines there until 1857 when he returned to Dubuque to work in the dry goods business. Coates entered the grain trade in 1862 for three years before returning to MINING and smelting. He was the First Ward alderman at the time of his death.
Portrait and Biographical Record of Dubuque, Jones and Clayton Counties, Iowa. Chicago: Chapman Publishing Company, 1894, p. 188