Conditions in the Copper Mines of Michigan. hearings before the United States House Committee on Mines and Mining, Sixty-Third Congress, second session, on Mar. 5-7, 1914. Part 5 :

Includes investigation of deaths at Red Jacket, Mich, due to stampede caused by false fire alarm. March 5 hearing was held in Houghton County, Mich, March 7 hearings were held at Houghton County, Mich. and Red Jacket, Mich.