The Sheilagh Brooks Collection on Nevada Historical Sites and Museums dates from 1977 to 1983. It contains materials including budgets, planning proposals, agenda, and minutes related to the Nevada State Museum, including proposals to build a state museum in Southern Nevada. The collection also contains National Register of Historic Places nomination forms for sites throughout Nevada.

The Hugh Henry Brown Papers consist of professional and personal papers (1902-1927) from Hugh Henry Brown, who was a lawyer in Tonopah, Nevada. The professional communication focuses on Brown's law practice dealing primarily with mining and railroad companies in Central Nevada. The papers also contain receipts from purchases made by Brown or his wife, Marjorie Moore Brown.

The Nevada Division of State Parks Photograph Collection (approximately 1910-1940) contains black-and-white photographic prints and some corresponding negatives that depict state parks and recreational areas throughout southern Nevada. The images also portray Lake Mead, Hoover Dam, Logandale, the Valley of Fire, and Mount Charleston as well as images of actors filming on location in southern Nevada.