The New York-New York Hotel and Casino 9-11 Heroes Tribute Collection consists of materials from the "Heroes of 9-11" display that was at the New York-New York Hotel and Casino in Las Vegas, Nevada from 2001 to 2012. The materials primarily consist of more than 5,000 t-shirts left at the memorial by visitors to Las Vegas, mostly from fire departments and law enforcement agencies from around the United States. Visitors left shirts and other items at the memorial as a sign of respect for the men and women who died during the terrorist attacks in New York City and Washington, D.C. on September 11, 2001. The collection also houses memorabilia and other items left at the memorial, including flags, hats, pins, buttons, flowers, and embroidered emblems and insignias. The materials also contain documentation of the memorial, including promotional and press materials, video recordings from the news media, photographs, and newspaper articles.

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 Southern Nevada, Clark County Museum Guild records consist of news clippings, meeting minutes, programs and other historical materials from 1983-1996.

The Stardust Hotel/Casino Convention Information Cards (1960-1970) consist of typescript index cards from the Stardust Hotel, Public Relations Department listing contact info for organizations and businesses planning to hold conventions in Las Vegas at the Stardust Hotel.

The Alice Pearson Papers (1956-2000) contain the personal papers of Alice Pearson and the administrative records of the Mesquite Club, the first service organization founded in Las Vegas, Nevada. The collection includes the club’s administrative records, service projects and social events, as well as its membership in the General Federation of Women's Clubs (GFWC). Materials within the collection include meeting minutes, correspondence, committee reports, newsletters, notebooks, and scrapbooks.

The Strutt Hurley Collection on the Southern Nevada Pride Association, Inc. (SNAPI) and Las Vegas Pride (1989-2000) contains materials collected and produced by Strutt Hurley during her tenure as Director of Entertainment of SNAPI. Materials include meeting minutes, advertising contracts, Las Vegas Pride programs, and ephemera collected from Pride celebrations in Las Vegas, Nevada and other parts of the United States and the world.

The collection contains drawings, photographs, and posters featuring costumes designed by José Luis Viñas, a Spanish costume designer active in Las Vegas, Nevada, from 1960 to 2000. Viñas is best known for his costume designs for Vive les Girls (1962-1975) and Casino de Paris (1963-1982), both long-running shows at the Dunes Hotel and Casino, as well as for Siegfried and Roy's show at the Frontier Hotel in the mid-1980s. Viñas also did some costume designs for an unidentified show in Sun City, South Africa in the late 1970s and later a show called Circus Cabaret at the Lady Luck Casino Hotel in Downtown Las Vegas.