The Sidney R. Whitmore Collection (approximately 1885-1970) contains land deeds and other documents about Mount Diablo, Nevada; documents detailing parts of his family history; and eight framed paintings of landscapes and portraits.

The Norman C. Jensen Collection, dated from 1867 to 1968, contains documents discovered by Norman C. Jensen at Fort Taylor, Florida. The collection includes a copy of the "Report of a Guard Mounted at Fort Jefferson, Florida on May 28, 1867" that describes four individuals accused of conspiracy in connection with the assassination of President Abraham Lincoln. The collection also contains an original report entitled "Quarterly Report of Artillery Inspection of Fort Taylor, Florida" dated December 31, 1903, and Lt. Col. Jensen's notes explaining the military abbreviations contained within the original report.

The Pacifica Hotel Collection (1981-1985) contains newspaper clippings, correspondence, and contracts on the Pacifica Hotel, the first resort geared specifically towards the LGBTQIA+ community in Las Vegas, Nevada. The collection also includes one optical disc with a compilation of Las Vegas television news stories from the summer of 1985 about the Pacifica Hotel project.

The Kendall Stagg Collection (1998-2000) consists of material documenting Kendall Stagg’s political races in northern Nevada and also details gay activism in Reno. The collection consists of Stagg campaign materials, a t-shirt from one of his campaigns, and documents pertaining to the Gay, Lesbian, and Bisexual Student Union at the University of Nevada, Reno and Gay Pride parade organizing in Reno.