Records consist of minutes, financial records, administrative policy papers, membership lists, negotiations and agreements, grievance materials, newsletters, correspondence, and photographs. Local 252 is based in Dayton, Ohio.

This collection provides documentation about Dayton area choirs and choir music. It contains William Alfred and Charlotte Gray's papers acquired during their careers as choir director and church organist at two Dayton area churches. It also holds documents from and relating to labor agreements between Delco/GM and Local 755 International Union Electrical, Radio and Machine Workers, AFL-CIO-CLC. It also holds employee directories and benefits packages from Delco/GM.

Includes Executive Board minutes, District Council minutes and proceedings, Conference Board minutes, and Civil Rights Committee minutes. Also included are financial records, election materials, negotiation records, subject files, and photographs.

This is a miscellaneous collection of union records including a 1908-1919 minute book from the Dayton Pressmen's Union, Local 12, and oral history interviews from three IUE District Council 7 officials.

The National Association of Letter Carriers (NALC), Branch 182 was organized in Dayton, Ohio in 1891. The branch has also been referred to as the “Gem City Branch” of NALC and serves to protect the labor rights of letter carriers in Dayton. The collection includes membership meeting minutes, membership records, correspondence, photographs, and miscellaneous materials.