The Junior League of Las Vegas' Records on the Morelli House Preservation Project contains the records of the Junior League of Las Vegas and the organization's efforts to preserve the Morelli House in downtown Las Vegas, Nevada from 1997 to 2017. Records are comprised of various internal and external planning documents, research files, advertising and publicity, correspondence, grant files, and photographs. Also included in this collection are scans of original planning documents and drawings used by Las Vegas, Nevada architect, Hugh E. Taylor, during construction of the Morelli House in the 1950s.

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 Florence Lee Jones and John Cahlan Papers (1929-1983) contain material created by the couple related to their work at the Las Vegas Review-Journal, their interest in the history of Las Vegas, Nevada, and the promotion of Southern Nevada for business and industry. The collection includes the Cahlan's correspondence as well as newspaper clippings about Las Vegas. It also contains drafts and manuscripts for their book, Water: a History of Las Vegas, commissioned by the Las Vegas Valley Water District.