The Harry Hayden Whiteley Architectural Records are comprised of architectural records (1931-1970) created and/or maintained by the American architect Harry Hayden Whiteley and/or his architectural firm, known as Harry Hayden Whiteley and Associates. This collection includes 30.21 linear feet of materials including 45 items from over 30 projects. The collection focuses on his work in the Las Vegas and Reno, Nevada areas. The materials feature both architectural drawings and project files. Architectural drawings include pencil and ink on tracing paper preliminary sketches and mounted artist’s renderings used for presentations and promotional materials. Project files include project correspondence, photographs, and structural calculations. The drawings also contain work from the architect Paul Revere Williams. The collection includes architectural drawings for hotels, shopping plazas, residential developments, and office buildings.

The Alpha Kappa Alpha Sorority, Incorporated, Theta Theta Omega (AKA TTO) Chapter records (1965-2020) are comprised of organizational records, conference programs, digitized copies of the chapter's scrapbooks, and copies of Ivy Leaf, the organization’s national newsletter. The records include chapter and committee agendas and meeting minutes, Far Western Regional Conference reports, and fliers for events hosted by AKA TTO. Also included are archived web captures of AKA TTO's website and digital audio and video files for the chapter's oral history project interviewing Charter, Golden, and Silver members from 2019 to 2020.

The Leon Rockwell Photograph Collection (approximately 1850-1979) contains black-and-white photographic prints, negatives, and slides, as well as postcards and tintypes. The images portray the lives of the Rockwell family in southern Nevada, their travels throughout New York and the western United States, and their immediate and extended family members. Also included are images of the volunteer and early firefighters of Las Vegas, Nevada, the Rockwell's family cabin at Mount Charleston, Nevada, and the Rockwell family home in Las Vegas. Portions of the images are from the Rockwell family travels across Nevada, Utah, New Mexico, Arizona, and California and depict historic locations such as Cove Fort, Utah; Rhyolite, Nevada; and Pueblo Grande de Nevada.

The Chester Longwell Photograph Collection consists of 608 black-and-white photographic prints dating from approximately 1910 to 1930. The images primarily depict the Longwell family's excursions in the Southern Nevada region, primarily to Mount Charleston, Nevada. Also included are images of Southern Nevada mines and mining towns, as well as Pubelo Grande de Nevada, the Lost City. The remaining images depict geological formations and features, as well as forestry and nature scenes in Nevada and Arizona.

The Clyde F. Merrick Photographic Slides (approximately 1971-1979) contain color photographic slides taken by Clyde F. Merrick, longtime resident of Las Vegas, Nevada. The majority of slides in this collection depict signs for different businesses around Las Vegas including the Las Vegas Strip and the Westside. Some of the businesses documented in this collection includes Fong's Garden, Leon's Shear Magic Beauty Salon, Lucas and Son's Antiques, Dick's Tricky Trikes, Mohan's Custom Tailors, the Twenty Grand Club, Owens TV Repair, and Caesars Palace. The collection also documents a variety of different types of businesses around Las Vegas including bars and nightclubs, beauty salons, car washes, gas stations, and restaurants. Merrick was also a car racing hobbyist and a number of slides in this collection depict what is presumed to be the Las Vegas Speedrome racetrack (later known the Las Vegas Motor Speedway). This collection also includes photographs of locations outside of Las Vegas and Southern Nevada.

The Maria LaCavera Papers (1947-2017) contain the papers of professional dancer Maria LaCavera. The collection documents the career of LaCavera dancing in Las Vegas, Nevada at the Flamingo Hotel in 1947, and the Last Frontier Hotel in 1949 as one of the Ramona Girls dancing in the Danny O'Neil Varieties Act. Materials include photographs of LaCavera and other Ramona Girls, newspaper clippings, correspondence, LaCavera's American Guild of Variety Artists (AGVA) employment contracts, Fabulous Las Vegas magazines, and hotel receipts. Other items of note include photographs of the 1949 Helldorado parade, a Frontier Hotel Ramona Room menu, and Frontier Hotel ephemera. There is also a copy of a self-published biography of LaCavera, written by her daughter-in-law Kristin Meyer entitled From Bon-Air to the Last Frontier. The collection also contains the digital images used to illustrate the book.

The Sister Klaryta Antoszewska Photograph Collection (1977-1991) consists of photographic slides that depict various Nevada, United States, and international nuclear test protests. The collection includes images of Sister Klaryta Antoszewska and Sister Rosemary Lynch, as well as images of the Lenten Desert Experience and numerous protests at the Nevada Test Site. Also included are images of nuclear testing, soldiers, and anti-nuclear testing promotional materials.