The collection is comprise of correspondence, magazines, photographs, and brochures relating to the Nevada Test Site outside of Las Vegas, Nevada and the Los Alamos Scientific Laboratory in New Mexico dating from 1942 to 2002. The collection was compiled by Jack Livingston and Jacquelynn Smith during their time working at various defense industry locations.

The Las Vegas Contemporary Arts Center Records (1985-2012) are comprised of the organizational records of the Las Vegas Contemporary Arts Center (CAC), located in Las Vegas, Nevada. Materials include administrative files, records of exhibits hosted by the CAC, newspaper clippings, awards, and promotional materials. The records also include photographic prints, slides, and digital images of artwork.

The Raymond Germain Professional Papers (approximately 1960 to 1970) contain material and photographs related to California Post Offices.

The Frank Gagliardi Music Manuscript Collection (approximately 1964-1974) contains musical arrangements of standard Frank Sinatra songs, printed or photocopied with annotations. Each part is in its own folder, and each song is numbered. Frank Gagliardi performed as percussionist in Antonio Morelli's orchestra for the Sands Hotel in Las Vegas, Nevada, where he played for Frank Sinatra and other notable entertainers during the 1960s and 1970s.

The Harrah’s Entertainment Corporate Archives (dating from 1811 to 2004 with the bulk of the materials dating from 1940 to 2000) contain the promotional and corporate files of Harrah’s Entertainment Inc. and its predecessors, as well as Bill Harrah’s personal papers and card game collection. The materials were compiled and developed as a corporate archive by Harrah's Entertainment, Inc.’s Corporate Communications Department. The collection is primarily comprised of casino and employee periodicals, reports, manuals, promotional files, ephemera, and newspaper articles that document Bill Harrah’s casinos in Reno, Nevada and Lake Tahoe as well as Harrah’s Inc., Holiday Inns, Inc., Holiday Corporation, the Promus Companies, and Harrah’s Entertainment, Inc. Also included are photographs that document the construction of Harrah’s properties, business operations, the people who worked and performed at Harrah’s properties, and Bill Harrah’s automobile collection. The collection also contains Bill Harrah’s collection of playing cards and card games. Also included are photographs of the Harrah family.

The Howard Hughes Film Production Records (1912-1992) represent Howard R. Hughes, Jr.'s Hollywood film production achievements through records from companies owned or established by Hughes. The bulk of the records date between 1926 and 1960 and include production and corporate materials from sixteen films, as well as materials related to Hughes' organizations outside of film development. Materials include documents, photographic prints and negatives, blueprints, line drawings, newspaper clippings, posters, paintings, and artifacts.