The George Knox Roth Collection (1959-1980) consists of newspaper clippings (including photocopies), magazine articles, newsletters, technical reports and publications, correspondence, notes, and photographs relating to the Atomic Energy Commission, the environmental impact of nuclear testing in Nevada, Nevada mining, Airwest and the Hughes Airport, and other aspects of Howard Hughes’ Nevada operations. The George Knox Roth Collection also includes correspondence and expense reports related to his own company, General Research Consultants.

The Sheilagh Brooks Collection on Nevada Historical Sites and Museums dates from 1977 to 1983. It contains materials including budgets, planning proposals, agenda, and minutes related to the Nevada State Museum, including proposals to build a state museum in Southern Nevada. The collection also contains National Register of Historic Places nomination forms for sites throughout Nevada.

The El Rancho Vegas Collection (1953-1961) is comprised of materials and memorabilia from the El Rancho Vegas Hotel collected by former hotel controller, Frank Watts. Records include financial documents including endorsed checks to performers at the resort. Other items included unused stationary, copies of the menu, and memorabilia from the hotel. The collection also contains a bathmat, hangers, and a drinking glass from the hotel.

The Elmo and Charlotte Ellsworth Papers (1948-1977) are comprised of business correspondence, room reservation records, promotional materials, and photographs from Elmo's employment at the Flamingo and Riviera Hotels in his work of securing conventions. There is also correspondence and promotional materials from his wife Charlotte Ellsworth, who worked as a reservations manager at the Riviera Hotel and the Frontier Hotel in Las Vegas, Nevada and the MGM Grand Hotel in Reno, Nevada.

The Nita Longo Rieger Collection on the Desert Chapter of Gold Star Mothers consists of materials dated from 1947 until 1995 from the Desert Chapter of Gold Star Mothers Inc. located in Las Vegas, Nevada. It includes newspaper clippings about the group, a history of the chapter, photographs of meetings and member events, and programs from the dedication and rededication of a monument erected by the group.

The Rene de Haven Papers contain photographs, costume designs, promotional show materials, press clippings, music manuscripts and productio notes, and audio recordings of dancer and choreographer Rene de Haven from 1944 to 2011. Personal papers, prints, proof sheets, black-and-white and color photographs document de Haven's work in dancing and choreography in Las Vegas, Nevada and Los Angeles, California.

The Joe Williams Music Scores date from 1940 to 1991 and comprise the handwritten musical scores of American jazz musician Joe Williams, born Joseph Goreed. Many of the musical scores are Williams' original arrangements.