The Hank Harrison Photograph Collection on Helldorado Days contains two black-and-white photographs of the Helldorado Days festival in Las Vegas, Nevada from approximately 1940 to 1977. The first photograph depicts a rodeo clown distracting a bull; the second photograph is of Ned Romero, an actor in Helldorado.

The Thomas McLaughlin Papers (1937-1985) are comprised of newspaper clippings, photographs, and correspondence about real estate, the Clark County Democratic Party, and local fraternal organizations, especially the Knights of Columbus and the Friendly Sons of Saint Patrick in Las Vegas, Nevada. Materials also include some clippings on McLaughlin's appointment as trustee of the Las Vegas Park Racetrack in 1955.

Ann Brewington Papers (1984-1987) consist of letters and clippings related to Nevada history. Correspondence is primarily from Anne Brewington's sister, Ida Brewington, to Brewington regarding Ida Pittman's death. This collection also contains a letter from Florence Cahlan and copies of letters sent to Cahlan about an article she had written on Ida Brewington Pittman. Also included is another article about Pittman that appeared in the December 2, 1984 Nevadan that has a few hand written notes in the margins, as do a few of the letters.

William M. Stewart Correspondence is primarily comprised of handwritten letters addressed to U.S. Senator William Morris Stewart, between 1854 and 1872. Many of the letters were written during his first term in office. Also included is one document about the reappointment of a postmaster of Sutro, Nevada, and a manuscript telegram from Frances P. Hayes about the territorial organization and judicate district in Indian Territory.