The Southern Nevada Historical Society Photograph Collection on Basic Magnesium, Inc. contains photographs of the construction of Basic Magnesium Inc.'s plants and buildings from 1941 to 1942. The photographs primarily depict aerial views of the plant site and various buildings, including the administration building, tent camp, chlorination buildings, electrolysis facilities, electrical distribution systems, and warehouses. The photographs also depict Lake Mead and the early buildings in Henderson, Nevada.

The Walking Box Ranch Collection (1917-2011) includes material collected by the University of Nevada, Las Vegas (UNLV) Public Lands Institute on the Searchlight, Nevada ranch. Materials include a maps related to the construction and operation of the ranch, a pair of chaps owned by Rex Bell, Jr., and color slides of the ranch. Also included are photographic prints of Rex Bell and Rex Bell, Jr., and newsclippings related to the film and political career of Rex Bell. A small number of newsclippings pertain to the career of Rex Bell, Jr.

The Aplin Family Scrapbooks (1927-1971) consists of four handmade scrapbooks compiled by Hilda Aplin. The scrapbooks contain photographs, correspondence, newspaper clippings, and handwritten captions. The majority of the collection focuses on Hilda and Charles Aplin’s involvement in the Fraternal Order of Eagles and Las Vegas Eagles Auxiliary #1213. Also included is a photograph album that details the family’s activities from 1927 to 1959, including notable locations around Las Vegas, Nevada such as Lake Mead, Hoover Dam, Mt. Charleston, and annual Helldorado parades.