Citizen Alert is a Nevada-based environmental organization established in 1975 in response to Yucca Mountain being considered as the repository for the nation's nuclear waste. The records in the collection date from 1971-1999, with the bulk of the records from 1988-1996 and focused on issues of concern to Southern Nevada. The collection includes a large subject and administration file containing the organization’s mailings, fliers and newsletters regarding environmental issues and events, newsletters of other environmental organizations, press releases and brochures from a number of government agencies, and newspaper clippings on specific environmental topics. The collection also contains a number of environmental reports from federal, state, and local agencies as well as a number of conference and activist packets.

The Ham Family Photograph Collection contains five photographic albums primarily featuring images of the Ham family's travels throughout the western United States and Artemus W. Ham Jr. and Betty Ham Dokter during their childhood between approximately 1900-1949. Also included is one photograph used as a Christmas greeting for the Ham family from 1981. The photographs feature locations including Cedar Breaks National Monument, Utah; Grand Canyon, Arizona; and Yosemite National Park, California. The collection also contains photographs of the Ham family at Mormon sites throughout Utah. Lastly, there are postcards and photographs of locations throughout the United States, Germany, and Japan.

The James Cashman Sr. Photograph Collection (approximately 1905 to 1975) consists of black-and-white photographic prints, negatives, slides, and albums as well as a glass plate negative. The photographs depict four major subjects: Cashman's family, friends, and associates; Cashman's businesses; the Hoover Dam and Colorado River; and various locations across Nevada.

The University of Nevada, Las Vegas Photograph Collection (approximately 1900-2004) depicts the development of the university and the city of Las Vegas. The collection includes images of campus buildings, student activities, sports teams, past university presidents, and Las Vegas in the early twentieth century. Early images depicting the surrounding area are included in this collection as well.

The Jacob E. Von Tobel Photograph Collection contains black-and-white photographs of the pioneer Von Tobel family from 1900 to 1980. The collection includes photographs of the Von Tobel family, early Las Vegas, Nevada buildings and landmarks, and aerial photographs of Las Vegas and surrounding areas.

The Junior League of Las Vegas Records (1946-2011) contain annual reports, fundraising information, training manuals, articles, minutes, photographs, scrapbooks, cookbooks, placards, and "Adopt a Bear" campaign materials. Also included is documentation for advocacy projects the League was involved with, such as Drug Abuse Resistance Education (D.A.R.E.), Safe Haven, the Ronald McDonald House, and Literature Awareness Program for Children. The League is supported by fundraising efforts including the Repeat Boutique, Holiday Coffees, annual benefits, luncheons, and sales of their cookbooks. The scrapbooks contain newspaper articles saved by members to document their activities year by year.