Quarry Workers' International Union of North America
The union was chartered by the American Federation of Labor on September 8, 1903.In 1938, it withdrew from the AFL and joined the Congress of Industrial Organizations (CIO).Three years later, it renamed itself the United Stone and Allied Products Workers of America (USAPWA).After years of decline, it merged with the United Steel Workers of America in 1971.The union's papers (1906-1914) are held by the Walter P. Reuther Library at Wayne State University.