The Gem Bar and Rioville Ferry Ledgers consist of of three ledgers, two of which date from 1911 to 1913 for The Gem, owned and operated by John Wesley Horden. The bar was built in 1905, and located on Block 16 in downtown Las Vegas, Nevada. The third ledger is of unknown origin, and is a record book of travellers crossing the Colorado River using the Rioville, Nevada ferry. Rioville, Nevada (first known as Junction City) was a settlement founded by Latter-day Saints in what they thought was Utah Territory in 1869, now under Lake Mead and within Clark County, Nevada.

The collection, 1949 to 2006, was compiled by Clifford Olsen, a containment physicist at the Nevada Test Site (NTS). It consists of research notes and working papers written by Olsen and other scientists, publications, epoxy aggregate samples, work-related correspondence, nuclear-test-event data, and interviews conducted by Olsen with work colleagues involved with the NTS.

The Dorothy Eisenberg Papers (early 1900s-2009, bulk 1970-2000) are comprised of organizational records, photographs, newspaper clippings, and scrapbooks reflecting her activism and volunteer work related to education, the Bullfrog County Commission, Las Vegas Clark County consolidation, League of Women Voters (LWV), Las Vegas Jewish Federation, Equal Rights Amendment (ERA), and Silver State Political Action Committee.

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 Progressive Leadership Alliance of Nevada (PLAN) records span the years 1994 to 2002 and are comprised of material documenting the organization's involvment in gay issues in Las Vegas, Nevada. PLAN was founded in 1994 as the umbrella organization for Nevada's progressive groups and institutions. This collection is comprised of material documenting the Minority Status and Child Protection Act of 1994 and the Coalition for Unity and Equal Rights Nevada, and contains a number of files from that effort, including opinion surveys, meeting agendas and campaign plans.

The Daniel Hinkley papers are comprised of material documenting Hinkley's work on behalf of the gay community in Las Vegas, Nevada between the years of 1991 to 2016. It includes Hinkley's files on the Progressive Leadership Alliance of Nevada, the campaign against Question 2, and various subjects related to the gay community in Las Vegas.

The Nevada Desert Experience Records (1951-2009) are comprised of files from the anti-nuclear organization, the Nevada Desert Experience (NDE), as well as its predecessor, the Sagebrush Alliance, and those of earlier unincorporated protests at the Nevada Test Site (NTS). Materials include board of directors meeting minutes, financial records, scrapbooks, personnel records, event speeches, correspondence, newspaper clippings, cartoons and other artwork, newsletters, brochures, fliers, research files on nuclear issues and other anti-nuclear organizations, and congressional testimony.

The Virginia James Papers (1949-1982) consist of the correspondence and contracts of Las Vegas, Nevada performer Virginia James. The materials document James’ employment history at the Tropicana, Flamingo, and Sands hotels and her involvement in the famous "Les Folies Bergere" show, which debuted in Las Vegas in 1959.

The Tony Wuehle Collection documents the activities of freelance writer, college president, and poker expert Edwin "Tony" Wuehle of Michigan and Las Vegas, Nevada, between the years of 1950 to 2007. The collection consists of copies of Wuehle's regular columns, newsletters, and special articles as they were published in various journals and newspapers, especially those related to poker, the International Home and Private Poker Player's Association (IH3PA), education administration, and religious concerns.

The Carol Corbett Papers, 1981-2006, contain papers from Nevada organizations, Clark County offices, and general biographical and geographical information. Included are Corbett Recorder Scholarship and Hoggard Memorial Scholarship data, files for the Clark County Recorder's Office, Clark County Credit Union, Records Management Policies and Procedures, a District Attorney Opinion Project, Nevada Women's History Project, Nevada History Archives, and the State Historical Records Advisory Board (SHRAB) files. There is also information on gay issues.