United Federal Workers of America was created in 1937.
United Federal Workers of America ended in 1946.
United Public Workers of America was created in 1946.
Workers United was created in 2009.
United Public Workers of America ended in 1953.
Most steel wire industry workers are in the United Steel Workers of America
United Workers Cooperatives was created in 1926.
United Farm Workers was created in 1962.
United Garment Workers was created in 1891.
United Mine Workers was created on 1890-01-22.
Workers' Council of the United States was created in 1920.
Workers Party of the United States was created in 1934.
United Steel Workers of Montreal was created in 2004.