mixed material monographic eng 8,750 26 10 Legal records, U.S. Federal Bureau of Investigation files, crime scene photographs, and other records relating to the murder of labor leader Joseph A. Yablonski, his wife, Margaret Yablonski, and daughter, Charlotte Yablonski, and to the Pennsylvania state and federal trials of United Mine Workers of America president William Anthony Boyle, who ordered the murders, and his co-conspirators. Restrictions apply. Full name: Joseph Albert Yablonski. Labor leader in the United Mine Workers of America. Collection material in English. Finding aid available in the Library of Congress Manuscript Reading Room and at http://hdl.loc.gov/loc.mss/eadmss.ms013057 Boyle, William Anthony 1904-1985 Trials, litigation, etc Yablonski, Charlotte 1944 or 1945-1969 Yablonski, Joseph A 1910-1969 Yablonski, Margaret 1912 or 1913-1969 United States. Federal Bureau of Investigation. United Mine Workers of America. Labor leaders United States Labor unions United States Murder Pennsylvania Trials (Murder) Pennsylvania Trials (Murder) United States mm2011085584 hdl:loc.mss/eadmss.ms013057 hdl:loc.mss/eadmss.ms013057.3 http://hdl.loc.gov/loc.mss/eadmss.ms013057 http://hdl.loc.gov/loc.mss/eadmss.ms013057.3 Restrictions apply. DLC 110407 20260227111732.0 mm2011085584 eng