Comprises materials related to Coleman's work as General Organizer and International Representative for the Iron Workers International Union. Includes weekly reports, correspondence, convention proceedings, and minutes for the District Council meetings, and contracts for locals 509 (Los Angeles), 624 (Fresno), 627 (San Diego), 790 (San Francisco, Oakland), 562 (Salt Lake), 801 (Reno), and 803 (Honolulu), along with other District Council materials. Includes COPE, Shop Division, and Ironworkers conference materials, as well as ephemera, photographs, and publications produced by various locals of the International Association of Bridge, Structural and Ornamental Iron Workers. Artifacts consist of union memorabilia, including Coleman's collection of convention pins and badges.