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 Roger D. Foley Papers on United States v. Cappaert are comprised of materials collected by District Judge Roger D. Foley while performing his duties as judge in United States v. Francis Leo Cappaert, et al. from 1972 to 1976. The collection includes transcripts of the case, exhibits, and copies of motions filed with the Court in regards to this case, which centered on the protection of the Devils Hole pupfish in Nevada.

The Hank Harrison Photograph Collection on Helldorado Days contains two black-and-white photographs of the Helldorado Days festival in Las Vegas, Nevada from approximately 1940 to 1977. The first photograph depicts a rodeo clown distracting a bull; the second photograph is of Ned Romero, an actor in Helldorado.

The Irma McGonagill Photograph Collection (1870-1925) consists of thirty black-and-white photographic prints, ten postcards, and fourteen photographic negatives showing Irma McGonagill and her family in Tonopah, Nevada during the mining boom. The images depict the town of Tonopah, mines around the Tonopah area, homes in Tonopah, and the McGonagill family.

The Ruthadele Stearns Doyle Lathrop Personal Papers (1900s-1991) contains scrapbooks, slides, and matted competition photographs created by Ruthadele Stearns Doyle Lathrop, a photographer and ballroom dancer. The scrapbooks include photographs of Ruthadele’s family, travels, and ballroom dance competitions, as well as newspaper clippings and other ephemera. The slides and matted photographs consist mostly of Western landscape scenes, including California and Nevada.