The Union Pacific Railroad Collection (1828-1986) is comprised of the original corporate records of the Union Pacific Railroad's operations in Southern Nevada, Utah, and Southern California, particularly focusing on Las Vegas and Los Angeles. The collection documents the purchase of Stewart ranch and the construction of the original depot and town which became modern Las Vegas. The collection also contains the records of the Las Vegas Land & Water Company (LVL&W), a subsidiary of the railroad formed in 1905 to handle the railroad's land transactions. The collection contains office files, correspondence, reports, leases, various legal, governmental and financial document, the collection contains large and small format maps, architectural and engineering drawings, published technical reports, railroad operational manuals, bound legal briefs, ledgers, and payroll and receipt books. The collection also includes the personal files of Walter Bracken, the Union Pacific's special representative in Nevada and vice president of the Las Vegas Land and Water Company, and a paper index of the collection materials.

The Red Rock Canyon National Conservation records (1965-2007) contain information about the Red Rock Canyon National Conservation Area (previously the Red Rock Canyon Recreation Lands). It largely consists of newspaper clippings on a variety of events related to Red Rock Canyon from 1965 to 1998 with the bulk from the 1980s and 1990s. The records also include Bureau of Land Management documents pertaining to interpretive efforts, visitation statistics, and law enforcement reports. Also included are the newsletters (1990-1998) and volunteer training manual of the Friends of Red Rock Canyon, a non-profit volunteer organization.

The Rick L. May Papers document social and political activities of Las Vegas, Nevada's lesbian, gay, bisexual, and transgender (LGBT) community from 1982 to 1997. The papers include records from the Gay Academic Union of the University of Nevada, Las Vegas; various gay pride celebrations in Los Angeles, California and Las Vegas; the Metropolitan Community Church's outreach to the LGBT community; as well as Rick L. May's own notes and collections about LGBT-supportive stores like R and R Assordid Sundries. The collection also includes several t-shirts that commemorate the pride celebrations. The papers demonstrate how the pride celebrations that began in 1984 were the result of efforts from several sectors of Las Vegas' LGBT community.

The Fraternal Order of Eagles (F.O.E.), Las Vegas Chapter Records (1906-2001) consist primarily of scrapbooks, attendance and meeting minute record books, correspondence, and an accounting ledger from F.O.E. Aerie #1213 and its associated Women’s Auxiliary and Retired Eagles Activities Club (REAC) located in Las Vegas, Nevada. The scrapbooks contain newspaper articles, photographs, memorandums, and state and national F.O.E. convention information. The collection also contains REAC secretary documents including the club charter, constitution, and bylaws. The F.O.E. is an international non-profit fraternal organization.

The Mollie Gregory Collection of Oral Histories contains audio interviews and brief transcripts that focus on welfare, family, and women's issues in Nevada from 1970 to 1974. Gregory interviewed Nevada residents including Maya Miller, Ruby Duncan, and Mary Wesley, who described their lives during the anti-poverty and women's rights campaigns in the early 1970s. The collection documents views on welfare; the Equal Rights Amendment; race, discrimination, and civil rights; and political campaigns.

The Harriet Trudell Papers (1949-2006) document Trudell's activities as a Democratic Party advocate, feminist, Civil Rights activist, campaign advisor, and precinct organizer. Materials consist of correspondence, photographs, conference programs, election memorabilia, speeches, and newspaper clippings. There are also papers from the various organizations Trudell was involved in including The Feminist Majority, International Plans for Action, Americans for Democratic Action, and the Nevada Democratic Party.

Oral history interviews with Sam Boyd conducted by John Chickering, Ralph Roske, and Mark Lilley on February 16, 1973, February 28, 1977, and May 09, 1979 for the Ralph Roske Oral History Project on Early Las Vegas. Throughout the interviews, Boyd touches on the social, political, and industrial changes that occurred in Southern Nevada pertaining to hotels/casinos, America’s involvement in wars, and political figures that shaped Nevada’s jurisdiction.