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 Oran K. Gragson Photographs depict Las Vegas, Nevada mayor and businessperson Oran K. Gragson from 1957 to 1981. The photographs primarily depict Gragson at political events with his wife Bonnie and other politicians such as U.S. senators Howard Cannon and Alan Bible, and Nevada Governor Paul Laxalt. The photographs also depict Gragson at groundbreaking ceremonies, Nellis Air Force Base, Las Vegas hotels and casinos, the mayor’s office, ribbon-cutting ceremonies, and with performers such as Wayne Newton, Sammy Davis Jr., and Lawrence Welk.

The Artemus W. Ham Family Papers (1857-1970) contain postcards written by family members, newspaper clippings about the Ham family, and a Nevada Senate Concurrent Resolution memorializing Artemus W. Ham, Sr. Also included are genealogy notes, a commencement program from Michigan Law School, and membership cards of Artemus W. Ham, Sr.

The collection is comprised of architectural records (1947-2001) of American architect, Homer Rissman and the architectural firm, Rissman and Rissman Associates Ltd, a partnership of Homer Rissman and his brother Marshall. The collection includes 825 items from over 40 major projects and over 110 minor projects. The Rissmans' work represented in the collection focused on Las Vegas, Reno, and Lake Tahoe, Nevada, Los Angeles, Southern California, and Arizona, with Homer's early career design work in Chicago, Illinois. The materials feature hand-drawn architectural drawings, ranging from pencil and ink on tracing paper preliminary sketches to ink on Mylar (TM) construction documents, and a number of artist’s renderings, used for presentations and promotional materials. The drawings also contain work from a number of consultants, engineers, and other architects who collaborated on the development of the various projects. The collection includes architectural drawings for: hotels, casinos, integrated casino resorts, office towers, multi-family residential developments, and custom single-family homes.