The Helen J. Stewart Photographs depict the Stewart Family from approximately 1860 to 1950. The photographs primarily depict Helen J. Stewart and her children as well as the Stewart Ranch (also know as the Las Vegas Ranch) in Southern Nevada. The photographs include the early Las Vegas, Nevada town site, landscapes of Southern Nevada and the American Southwest, mines and mining camps, railroads and railroad workers, the Las Vegas Fort (also known as the Old Mormon Fort), hotels and early businesses in Las Vegas, Native Americans and Native American artifacts, and postcards.

The Sands Hotel Public Relations Records document the history of the Las Vegas casino and hotel from 1952 to 1977. It is comprised primarily of photographs, mostly 8x10 black-and-white prints, color prints, and transparencies. Most were produced by the Las Vegas News Bureau. Also included are newspaper clippings, brochures, press releases, and inter-office memos relating to the advertising and promotion department. Materials also include reels of 16mm film of the Sands opening, various shows and events including Frank Sinatra and Dean Martin's "Summit Meeting" performances with the Rat Pack, and footage from various television productions filmed at the Sands.