United Steelworkers of America. District 50
District 50, comprising workers allied with mining operations, was chartered by the United Mine Workers in 1936, became independent in 1970, and merged with the United Steelworkers of America in 1972.
From the description of United Steelworkers of America, District 50 records, 1936-1975 (bulk 1968-1972). (Pennsylvania State University Libraries). WorldCat record id: 693212864
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2016-08-09 01:08:04 pm |
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2016-08-09 01:08:04 pm |
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