sentences:  Angus McKinnon and Morris A. Ruffner filed the first copper mining claims at this location in 1876.In 1880, Frederick A. Tritle, the governor of the Arizona Territory, and Frederick F. Thomas, a mining engineer from San Francisco, bought these claims from the original owners.In 1883, with the aid of eastern financiers including James A. MacDonald and Eugene Jerome of New York City, they created the United Verde Copper Company.