The Si Zentner Collection of Music Scores consists of copyright agreements and original music scores from the career of musician Si Zentner. The manuscripts span from 1957 through 1996.

The Las Vegas, Nevada Gay, Lesbian, Bisexual, Transgender, and Queer/Questioning (LGBTQ) Collection documents the social and political activities of Las Vegas, Nevada's LGBTQ community from 1955 to 2020. The collection includes hundreds of newspaper articles about LGBTQ issues, ranging from AIDS to Nevada legislation. The collection also documents the presence of the LGBTQ community in Las Vegas, including material from gay bars, nightclubs, social clubs, advocacy and political organizations, entertainers, and student groups. Previously known as the Las Vegas Gay, Lesbian, Bisexual, and Transgender Collection.

The Dennis McBride Collection of Gay Erotica (1960-2006) contains a selection of pornographic publications, three VHS tapes of erotic films, and photographic prints mail ordered from gay erotica or physique photography studios. The three studios represented in this collection are Alexander Studio, Sierra Domino Studio, and Third World Studio.

The Nevada Official Bicentennial Book Collection (1975) contains materials related to the editing and publication of the book by the Nevada American Revolution Bicentennial Committee. It includes article submissions about Nevada history as well as a small amount of correspondence to Stanley Paher, the editor of the book.

The Thomas J. Hickey Photograph Collection (1987-1989) contains color and black-and-white photographic prints of Thomas J. Hickey during his tenure as a Nevada State Senator. The collection also includes photographic prints of the Sparks, Nevada train yard and the Home of the Good Shepard church in Las Vegas, Nevada.

The Albert S. Henderson Photograph Collection (1860s-1959) primarily contains black-and-white photographic prints of Albert S. Henderson and his family. Also included in the collection are photographic prints of Henderson during his tenure as a Nevada legislator and district judge. Other materials include postcards, negatives, and a tintype.

[DEACCESSIONED] Collection is comprised of personal and community photos collected by Stan Armstrong dating from the 1940s to the 2000s. The collection also consists of photos of the historic Westside neighborhood of Las Vegas, Nevada and its African American community. Also included are promotional posters from Stan Armstrong's documentaries and memorial service programs of members of the African American Community.