The John Janosco United Packinghouse Workers of America (UPWA) Collection documents his activities as UPWA West Coast Representative. The collection includes weekly field reports, correspondence with union locals, and photographs. A small amount of correspondence and union bulletins document his previous membership in the Furniture Workers Union in Minnesota. Papers in the collection document through newspaper clippings, court proceedings, and immigration documents the attempt to charge Janosco with subversive activities. Tax records, paycheck stubs and performance of evaluation records document Janosco's employment with UPWA and the Los Angeles Unified School District. The collection also contains correspondence between Janosco and his brother, Peter. It has been divided into four series: UPWA, Minnesota (1947-1961), UPWA Weekly Field Reports (1951-1960), Personal and Family Documents (1908-1973), and Non-Manuscript Material (1911-1965).
Series I, UPWA, Minnesota, consists of information linked to Janosco's work with United Packinghouse Workers of America Local Union #4, which includes credentials, correspondence for nomination and a withdraw transfer certificate.
Series II, UWPA Weekly Field Report, consists of information related to John Janosco's work as a United Packinghouse Workers of America representative. The reports are categorized by year.
Series III, Personal and Family Documents, consists of several documents that include income taxes, property taxes, employment applications, personal receipts, court proceedings, newspaper clippings and correspondence.
Series IV, Non-Manuscript Material, includes ephemera, photographs, and oversized newspaper clippings. Ephemera includes several metals and delegate pins associated with John Janosco's work under the UPWA and personal metals. The 24 photographs are comprised of union conventions and several union meetings in which John Janosco participated. Oversize newspaper clippings deal primary with John Janosco deportation case.