The Helen J. Stewart Papers (1869-1978) document the life of Las Vegas, Nevada pioneer, Helen J. Stewart. It includes correspondence between Stewart and her children as well as various family legal papers and certificates. The collection also contains Helen J. Stewart's 70th birthday scrapbook, a ledger, and a day book from 1904-1919, as well as several photograph albums and information related to the family burial plot.

The UNLV Libraries Collection of Tropicana Resorts Publicity and Press Materials includes equity research reports, press kits, press releases, promotional materials, and newspaper and magazine clippings for Tropicana Las Vegas in Las Vegas, Nevada, and Tropicana Atlantic City in Atlantic City, New Jersey, dating from 1958 to 2010.

The UNLV Libraries Collection on the Las Vegas Paiute Tribe (approximately 1974-1990) contain oral history transcripts of Paiute community members from approximately 1974 to 1977 and reproductions of Bureau of Indian Affairs correspondence, legal documents, annual reports, and census information regarding the area formerly known as the Las Vegas Indian Colony located in Las Vegas, Nevada. The documents contain information about the original transfer of property ownership from Helen J. Stewart to the United States, who acted on behalf of the Paiute people in 1911, the establishment of the original site location, and annual reports which include a narrative about the community, census information, and health reports of the population living in the area. The collection contains no original documents.

The Del Webb Corporation Photograph Collection (approximately 1957 to 1988) consists of black-and-white photographic prints, black-and-white oversize reprints, negatives, and color slides focusing on the Mint Hotel and Casino in downtown Las Vegas, Nevada. Images depict the construction of a twenty-six story high-rise addition to the property, its grand opening and anniversary celebrations, the Mint 400 Off-Road race festivities, interior shots of the casino floor, restaurants and lounges, and a salon. Also included are exterior images of properties on Fremont Street considered to be competitors of the Mint, advertisements and billboards, and photographs of Del E. Webb and associates.

The Bob Stupak Professional Papers (approximately 1900 to 2007) primarily documents the career of Las Vegas, Nevada casino owner, Bob Stupak. The materials in the collection include the planning of two resorts in Las Vegas, Nevada created by Bob Stupak: Vegas World and the Stratosphere. The collection also includes planning materials for the Titanic Las Vegas, an unbuilt resort envisioned by Stupak. Planning and promotional materials for Stupak's resorts including photographs, memorabilia, audiovisual materials, advertising mockups, and architectural drawings. The collection includes several scrapbooks and photographs of Stupak and his wife Sandy at events around Las Vegas. The materials also document Stupak's political campaigns running for mayor of Las Vegas in 1983 and 1987 and lieutenant governor of Nevada in 2006.