Additional materials relating to Branch 139 may be found in the international union's records. Included there are a number of correspondence files about Branch 139, several items in the General President's Correspondence and Subject File for 1961, and in the General Secretary-Treasurer's Correspondence and Subject Files for 1961-1963. Two Research and Education Department files provide information on the last years of the Royersford branch. The international's Contract File contains notes, memos, and correspondence about contract negotiations and matters under arbitration concerning Branch 139. There is no file for the Royersford Needle Works in the Employer Files series.
