The collection, 1949 to 2006, was compiled by Clifford Olsen, a containment physicist at the Nevada Test Site (NTS). It consists of research notes and working papers written by Olsen and other scientists, publications, epoxy aggregate samples, work-related correspondence, nuclear-test-event data, and interviews conducted by Olsen with work colleagues involved with the NTS.

The Bill Campbell Costume Designs (1954-1978) are comprised of original costume design sketches created by designer Bill Campbell for a number of Donn Arden's stage productions, including Pzazz!, Hello America, and Hello Hollywood Hello that were staged in the Crystal Room at the Desert Inn in Las Vegas, Nevada during the 1960s and 1970s. The collection also contains some sketches for other revues held in Los Angeles, California and Reno, Nevada. The majority of items in the collection are original drawings with attached fabric swatches; a number of items are xeroxed reproductions.

The Kim Sisters material date from 1959 to 1966 and 1983. It consists of two scrapbooks and one folder of photocopied materials containing newspaper clippings about the appearances of the Kim Sisters muscial group throughout the United States as well as Italy, Germany, and Spain. It also includes two record album sleeves.

The Thomas Clark Professional Papers (1950-1998) contain materials from his tenure as a Professor of English at the University of Nevada, Las Vegas (UNLV), which are divided into two series. The gaming research series includes newspaper clippings, correspondence, brochures, bulletins and articles. Also included are book chapters, a glossary of terms used in the casino industry, and gambling guides. In the linguistics and teaching series there are research files, articles, speeches, correspondence, interviews, multimedia, workshops, and conference materials. Also included are files on graffiti, symbolism, ethnic and regional speech differences, language usage, and National Council of Teachers of English (NCTE) material. Additional materials include colleague publications and cassette tapes of interviews from students in courses Clark taught at UNLV.

The Jane Ham Legislative Papers (1980-1981) document the legislative activities of Nevada Republican Assemblywoman Jane Ham during the 1981 legislative session. The collection consists of Legislative Bureau correspondence, memos, pamphlets, and draft legislative bills. Also included are reports, studies, and informal polls from private individuals and lobby groups expressing response to pending legislation.

The James H. Down Jr. Photograph Collection (approximately 1915-1940) consists of black-and-white photographic prints and negatives, as well as color photographic slides and postcards. The images depict scenes in and around Las Vegas and Goodsprings, Nevada. Also included are Glenn Davis' photographs of the Hoover Dam (Boulder Dam), Black Canyon, the Colorado River, and Lake Mead. Most of the images portray the construction phases of the Hoover Dam.

UNLV University Libraries Photographs of the Response to the 1 October Shooting in Las Vegas, Nevada (2017-2019) are comprised of digital images captured to document the aftermath of the mass shooting at the Route 91 Harvest Festival in Las Vegas, Nevada. Following the October 1, 2017 killing of 58 people at the Route 91 Harvest Music Festival on the Las Vegas Strip, the Las Vegas community responded in a variety of ways. This collection of photographs document the impromptu memorial created at the "Welcome to Las Vegas" sign, the funeral of Officer Charleston Hartfield, and different ways the community and organizations have remembered the tragedy since 2017. The collection also documents the Las Vegas Community Healing Garden at 1015 S. Casino Center Boulevard, envisioned by activists and built by volunteers, to honor the victims and give family members and the community a place to gather to remember.