The Southern Nevada Daughters of the American Revolution Records primarily document the activities of three Southern Nevada chapters of the National Society Daughters of the American Revolution from 1950 to 2024. The materials center around the records of three chapters from Southern Nevada: Old Spanish Trail, Francisco Garces, and Valley of Fire. Materials include administrative records, scrapbooks, photographs, news clippings, and correspondence about the activities of the Daughters of the American Revolution chapters. Mateirals also include some records and scrapbooks from the Nevada State Society of DAR.

The Tonopah Mining Company Records derive from the office of the company’s general manager in Tonopah, Nevada and consist of documents directly generated by its mining and milling operations from 1901 through 1941. The collection includes daily work reports, assay reports and certificates, employee time cards, invoices and receipts for mining equipment and supplies, monthly stores reports, and the company’s numerous insurance policies. Several of the company’s annual reports, including an original typescript copy of the 1907 annual report, are included in the collection. Additionally, select records from the company's subsidiary, Desert Power and Mill Company, as well as the Tonopah and Goldfield Railroad, which include overcharge claims, freight and repair bills, and delivery receipts are included in the collection.

The Florence Lee Jones Cahlan Photographs depict locations and events in Las Vegas, Nevada from 1909 to 1980. The photographs primarily depict historical locations, including the Las Vegas Mormon Fort, the Kiel Ranch, and plaques commemorating Las Vegas’s 75th anniversary. The photographs also depict celebrations, including the Diamond Jubilee festivities held to celebrate Las Vegas’s 75th anniversary, plaque dedications, building dedications, and the 50th anniversary of the arrival of the first mail planes in Las Vegas. The photographs include the Kennecott Copper Corporation’s facilities in McGill, Nevada, Western Airlines planes and pilots, and Union Pacific Railroad locomotives.

The Blue Diamond Mine Corporate Records (1918-2005) consist of operational and organization records of the gypsum mining and milling operations located in southwest Clark County, Nevada. Materials include operational records related to individual boring sites at the mine; milling operations and statistics; and equipment operations and statistics, including maps, field notebooks, and photographs. There are also daily, weekly, and monthly organizational records related to employee work schedules and safety reports for the mining operations, including accident reports and a safety education training program.