Includes membership records kept by members and by the union. Members appear to have kept due books throughout their careers. Therefore, the books frequently document previous membership in other locals of the same union. Membership ledgers were maintained by Local 1214 and provide a record of the names, addresses, dates of initiation, and due payments of union members. Membership status reports cover a brief period and seem to have constituted a parallel and, ultimately, a replacement system for tracking membership dues.