Points of interest in Book VII include: a mention of the "Ludlow Massacre" [p 23]; election results [p 131]; evidence that the "Crockett local" was amalgamated on July 9, 1915 [p 213]; an amendment to the union constitutions that limited membership to "white citizens of the United States"[p 297]; a record that the Riggers' Protective Union amalgamated on November 1, 1915 [p 297].