The MacDonald Ranch Development Records (1972-2010) contain correspondence, maps, land assessments and investigations, master plans, architectural drawings, civil drawings, and landscape drawings primarily detailing the community development process of MacDonald Ranch, one of the oldest master-planned communities in Henderson, Nevada.

The Maurine and Fred Wilson and Dr. William S. Park Audiovisual Collection (approximately 1900s-1970s) consist of audiovisual material created by the Wilson and Park families. The materials depict the Park homes in Las Vegas, Nevada; Park and Wilson family members; outdoor activities and vacation trips to California, Colorado, and Mexico. The collection also documents early views of the Kiel Ranch in Las Vegas, Nevada, community parades and events, and early views of Las Vegas in the 1920s.

The MGM Mirage Corporation Records date from 1970 to 2010 and consist of the records of the Las Vegas, Nevada based global entertainment company. The collection contains organizational records, employee newsletters, files about the MGM Mirage diversity and inclusion initiative, correspondence, reports on gambling addiction, gambling statistics, press clippings, and audiovisual materials. There are also photographs, photographic slides, and photographic negatives of performers, corporate executives, and MGM Mirage properties.

The Junior League of Las Vegas Records (1940-2023) contain annual reports, fundraising information, training manuals, articles, minutes, photographs, scrapbooks, cookbooks, and other operational and working files that document the activities of the Junior League of Las Vegas (JLLV). Also included is documentation for advocacy projects the JLLV was involved with, such as Drug Abuse Resistance Education (D.A.R.E.), Safe Haven, the Ronald McDonald House, Read Aloud, and Literature Awareness Program for Children. Other records in this collection document JLLV's fundraising efforts such as the Repeat Boutique, Holiday Coffees, annual benefits, luncheons, and sales of their cookbooks. Also included are scrapbooks and issues of their newsletter The Sage.