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 Hank Greenspun Papers date from 1962 to 1966 and are comprised of draft manuscripts of the books Where I Stand: Records of a Reckless Man written by Hank Greenspun and Alex Pelle, and drafts of the manuscript Rebel with Many Causes, originally entitled Idol Smasher, a biography written about Hank Greenspun by Ed Reid.

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.