Series consists of 2041 photographs of activities of the U.S.W.A. in Canada centering on union meetings, work conditions, and strikes, mostly from the U.S.W.A. publication Steel Labor; 3 photos of Ontario Provincial Police at Kirkland Lake, Ont., during miners' strike, 1941-1942, and picket lines at Hallner Mines and Broulan Reef, Kirland Lake, Ont., 1953. Series consists of 9 photographs depicting Murray Cotterill, public relations director in Canada for the United Steelworkers of America; headquartes of the "Ontario Executive" of the Steel Workers Organizing Committee, Toronto, ca. 1939; group of striking miners, Hollinger Mines; Group Health Centre, Sault Ste. Marie, Ont., ca. 1965; 7th Constitutional Copvention, Canadian Labour Congress. Series also contains 6 photographs showing activities of Mr. M.J. Fenwick as organizer of the United Steelworkers of America Union in Canada.