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 Edith Giles Barcus Family Papers document the lives and work of three related individuals who lived in Goldfield, Nevada: noted mining engineer Edwin S. Giles who settled in Goldfield in 1907, his daughter Edith Giles who was raised in Goldfield, and Clyde Barcus, also a mining engineer, who came to Goldfield in 1923 and married Edith Giles soon thereafter. The papers date from 1848 to 1979 and document the business and personal lives of two generations of the Giles-Barcus family in Goldfield and Las Vegas, Nevada. The collection includes: property, commercial, financial, and mining records; mining and engineering reports; notes on minerals; correspondence; and photographs of the family, Goldfield, and travel shots of the western United States.

The Dolores Brownhofer Neonis Photograph Collection (approximately 1940-1970) contains photographic prints, negatives, and a slide depicting the Brownhofer family at restaurants, bars, and casinos in Las Vegas, Nevada.

The Young Audiences New York, Nevada Humanities Photograph Collection (approximately 1970-1979) contains black-and-white photographic prints, slides, and negatives of the Las Vegas, Nevada chapter of the Young Audiences New York arts organization. Images include scenes of concerts, workshops, and chapter outings at public parks. There are images of specific bands within the chapter such as the Brass Quintet, Vocal Quartet, and Woodwind Quintet. Lastly, there are images of celebratory banquets honoring members of the Las Vegas chapter.