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.

The Gay Business Directories Collection, compiled by Dennis McBride, dates from 1992 to 2015 and consists of gay and lesbian business telephone directories from sixteen North American markets, including Las Vegas, Los Angeles, Palm Springs, San Diego, San Francisco, Seattle, and Vancouver.

The Strutt Hurley Collection on the Southern Nevada Pride Association, Inc. (SNAPI) and Las Vegas Pride (1989-2000) contains materials collected and produced by Strutt Hurley during her tenure as Director of Entertainment of SNAPI. Materials include meeting minutes, advertising contracts, Las Vegas Pride programs, and ephemera collected from Pride celebrations in Las Vegas, Nevada and other parts of the United States and the world.

The Ted Lenhart LGBTQ Community Collection (1990-2001) is comprised of correspondence, newspaper clippings, and organizational material detailing LGBTQ community issues in Nevada throughout the 1990s. The collection includes materials from organizations including: Aid for AIDS of Nevada, the Clark County Coalition of HIV/AIDS Service Providers, the Nevada chapter of the AIDS Coalition to Unleash Power (ACT-UP), efforts to organize an HIV-Negative Men’s support group in Nevada, and Nevada Outdoors, an LGBTQ hiking club.