Series III is arranged by Local numbers; the material relate to specific campaigns undertaken in those locals. Some records relate to pension fund campaigns and the efforts of TDU staff, in particular Susan Jennik to secure pension benefits for members. Additional materials include election records, mediation and arbitration awards; NLRB cases and grievance files; and collective bargaining. The records of Local 560, with its history of corruption and lengthy government-imposed trusteeship are of particular interest.