The Catherine Boyer Postcard Collection contains postcards from Pahrump, Nevada. The collection depicts various scenes in Pahrump, Nevada, including the Pahrump Store, Tomken's Western Store, a group of men at a campfire, and Pahrump local, Lou Maestas', rendering of a winter scene.

The Production Company Audiovisual Collection consists of commercials, advertising, and political campaigns from approximately 1965 to 1995 created by The Production Company, a television production company founded by Thomas “Bob” Patrick in Las Vegas, Nevada. The collection consists of primarily 16 mm film and video formats such as VHS, U-Matic, Betacam, open reel, Type C, and quadruplex. The videotapes and films in this collection represent advertising and marketing for hotels and casinos, entertainment companies, politicians, and local businesses located in Las Vegas, Nevada.

The Alan Bible Speeches Collection contains speeches made by Alan Bible while he was serving as a United States Senator representing Nevada from 1967 to 1974. The collection documents Bible's work around the state of Nevada, including dedication and commencement speeches, policy speeches, and promotion of the Democratic Party, as well as some speeches delivered in Washington, D.C.

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 Albert S. Henderson Photograph Collection (1860s-1959) primarily contains black-and-white photographic prints of Albert S. Henderson and his family. Also included in the collection are photographic prints of Henderson during his tenure as a Nevada legislator and district judge. Other materials include postcards, negatives, and a tintype.

The John Nichols Photograph Collection (approximately 1930-1950) is comprised of black-and-white photographic prints depicting the western region of the United States including Southern Nevada, the Hoover Dam (then known as Boulder Dam), Lake Mead, and various desert landscapes. Photographs were collected by former Las Vegas and Boulder City, Nevada resident, John Nichols, who is a longtime art collector and gallery owner based in California. The collection includes some photographs taken by American photographer Glenn Davis who was known for photographing the Las Vegas Valley and the construction of the Hoover Dam.

The Thomas J. Hickey Photograph Collection (1987-1989) contains color and black-and-white photographic prints of Thomas J. Hickey during his tenure as a Nevada State Senator. The collection also includes photographic prints of the Sparks, Nevada train yard and the Home of the Good Shepard church in Las Vegas, Nevada.