Abstract Minutes, bylaws, correspondence, manuscripts, newsletters, financial records, legal papers, transcripts, pamphlets, flyers, clippings, sound recordings, and other papers relating to the Mattachine Society, brought together by the Mattachine Society Project from materials donated to ONE Institute (now ONE International Gay & Lesbian Archives) by Harold Call; from other collections held by ONE; and from collections in Jim Kepner's International Gay & Lesbian Archives. Founded in Los...