The Ortiz Family Collection on the Las Vegas 51s Baseball Team consists of programs, baseball cards, posters, newspaper clippings, and seasonal media guides from 1983 to 2010. The bulk of material is from 1983-2000, when the Las Vegas Stars franchise was affiliated with the San Diego Padres. In 1983, a Pacific Coast Minor League franchise moved to Las Vegas, Nevada, and became the Las Vegas Stars. The team was an affiliate of the San Diego Padres from 1983 to 2000, and in 2001 the name changed to the Las Vegas 51s. The team was then affiliated with the Los Angeles Dodgers (2001-2008), the Toronto Blue Jays (2009-2012), and the New York Mets (2013-2018). Now the Las Vegas Aviators, the team is affliated with the Oakland A's (2019-present).

The Maury Stevens Papers are mainly comprised of advertising and publicity materials related to the Las Vegas, Nevada hospitality and entertainment industry from 1953 to 1981. The collection includes both published and unpublished materials collected and created by Maury Stevens as a result of his work in advertising in Las Vegas. Formats include magazines, newspaper clippings, show programs, photographs, and brochures.

The Las Vegas City Engineering and Planning Department Reports (1951-1981) consist of urban planning reports, transportation and parking studies, and environmental impact assessments concerning the greater Las Vegas, Nevada metropolitan area. In addition to general issues of urban planning, the collection contains materials relating to the expansion of Interstate 15 through West Las Vegas in the 1970s and early 1980s.

The Grace Hayes Papers (1900-1989) include personal papers and financial papers pertaining to the Grace Hayes Lodge (formerly the Red Rooster), a nightclub on the Strip in Las Vegas, Nevada. The collection includes financial documents, newspaper clippings about Hayes and her family, personal correspondence, career mementos, legal documents, and photograph albums.

The John Ponticello Papers are comprised of materials related to Ponticello's experiences in Las Vegas, Nevada between 1956 and 1971 with an emphasis on his Research Gambling Game Project, which he conducted and published between 1968 and 1971. The collection includes materials regarding gaming licenses and applications, research agreements, descriptions of the project, and publications about the research project. Also included are materials from Ponticello's experiences in Las Vegas such as business cards, county work cards, and souvenir photographs.

The Martha C. Knack and Omer C. Stewart Research Papers on the Pyramid Lake Paiute Tribe contains materials collected by Stewart and Knack as research for their 1984 book, As Long as the River Shall Run: An Ethnohistory of Pyramid Lake Indian Reservation. The collection focuses on the Pyramid Lake Paiute Reservation in Northeastern Nevada from 1845 to 1975 and include letters, journal articles, legal documents, government documents, treatises, and records. All materials are photocopies of documents that date between approximately 1845 to 1980.

Aaron Williams Papers (1965-1981) consist of scrapbooks, newspaper clippings, scrapbooks, certificates, newspaper clippings, reports, and programs. Many of the clippings and some of the correspondence contain references that give insight into the role of women in North Las Vegas and Clark County, Nevada during the late 1960s and early 1970s. The scrapbooks and newspaper clippings document Williams' career as well as issues he dealt with as councilman and commissioner. These issues include those related to community and infrastructure development, such as airports, sewage treatment plants, senior citizens, health, and urban planning as well as North Las Vegas and Clark county political activities during the late 1960s and early 1970s.