The Lee Plotkin papers document Plotkin's political work and associations as an LGBT activist and spokesman for the Las Vegas gay community, and include correspondence, press releases, copies of his columns, institutional and legislative documents, brochures, fliers and other ephemera from 1955 to 2006.

The Cave Nightclub Records (1992-1994) are comprised of materials generated during the planning and construction of the Cave Nightclub in Las Vegas, Nevada. It opened in 1992 as a straight nightclub. It changed ownership in 1993, and reopened on September 3, 1993 as a gay nightclub and closed early in 1995. The collection contains policy documents, building plans, and promotional and publicity materials, as well as artifacts, including waiter uniforms from the nightclub.

The Las Vegas Professional Men’s Club Records (1984-1997) consist of the constitution, meeting minutes, and organizational documents of the Las Vegas Professional Men’s Club, later known as the Las Vegas Men’s Club (LVMC). The LVMC provided a social outlet for gay men in Southern Nevada. The bulk of the materials date from the 1990s and include membership lists, event fliers, promotional materials, financial documents, and information documenting the club’s fundraising activities.

The Center Stage, Inc. Records (1994 to 2008) are comprised of photographs, bylaws, correspondence, meeting minutes, publicity, scripts, programs, cast lists, and video cassettes of a number of the productions. Center Stage Theater Inc. was the first LGBT theater company in Las Vegas, Nevada.

The Stonewall Park Collection (1983-1987) documents the Stonewall Park project, an unrealized gay community in Nevada. Material includes news clippings and ephemera, as well as financial records and ancillary documents detailing bankruptcies and litigation associated with the Stonewall Park project. Much of this material is photocopied from MS 1990-15 (Fred Schoonmaker Papers), held at the Museum of GLBT History in San Francisco, CA.

The Stand OUT for Equality Records (2008-2011) contain correspondence, lobbying materials, press kits, promotional materials, expense reports, meeting agendas and minutes, certificates, and notes pertaining to the 2009 and 2011 lobbying efforts by Stand OUT for Equality for gay and straight domestic partnership benefits and transgender rights held in Carson City, Nevada. The collection also contains photographic prints of the 2009 and 2011 Equality Days in Carson City, copies of legislation related to domestic partnerships in Nevada, event invitations, newspaper clippings, and optical discs with digital copies of fliers, posters, logos, manuals, training videos, and photographs, as well as templates and budgeting information.

The Nevada State Protection of Marriage Initiative Collection (2000) consists of Clark County, Nevada petition signatures in favor of the initiative to exclude gay and lesbian Nevadans from marriage. The "Protection of Marriage Initiative" was also known as Question Two on the ballot. Much of this material is photocopied from the Nevada State Archives and contains pages from Clark County, including Boulder City, as well as notable Southern Nevada signatures.