The Matthew O'Brien Papers is comprised of records from approximately 2001 to 2011 that document writer Matthew O'Brien's work for two of his Las Vegas, Nevada based non-fiction novels, Beneath the Neon: Life and Death in the Tunnels of Las Vegas and My Week at the Blue Angel: and Other Stories From the Storm Drains, Strip Clubs, and Trailer Parks of Las Vegas. Collection materials include research files, chapter drafts, photographs, and correspondence. The collection materials document O'Brien's process in researching the homeless community in Las Vegas, Nevada.

The J. T. McWilliams Photograph Collection contains photographs and postcards from Nevada and Southern California from approximately 1900 to 1970. The materials include postcards depicting Las Vegas, Nevada casinos such as El Rancho Vegas and the Golden Nugget Gambling Hall. The materials also include postcards depicting towns and scenes in Nevada such as Carson City, Rhyolite, Red Rock Canyon, and covered wagons traveling to Las Vegas. Lastly, the materials contain several photographs of the McWilliams family, possibly while they were living in what is now Las Vegas, Nevada.

The Gay and Lesbian Community Center of Southern Nevada Records (1992-2023) and include news articles, institutional records such as bylaws, agendas, and meeting minutes, ephemera, and programs for the Center’s annual Honorarium fundraiser. Additional materials include materials relating the the wellness clinic.

The Underground House of Las Vegas Collection (1964-2004) consists of newspaper clippings, magazine articles, books, photographic prints, and digital images detailing the construction and history of Girard "Jerry" B. Henderson’s "Underground House," a Las Vegas underground dwelling completed in 1978.