The Linda Miller Papers (2008-2024) document Dr. Linda Miller's historic preservation work in Las Vegas, Nevada including her work portraying early Las Vegas resident, Helen J. Stewart, at historical events across Southern Nevada. The collection documents Miller's efforts to erect a statue of Helen Stewart at the Las Vegas, Nevada Old Mormon Fort, as well as her contributions to the programming for Sarah Winnemucca Day in 2018. The collection documents Miller's appearances as Helen J. Stewart through photographs, pamphlets, video recordings, digital files, and curriculum used for her outreach work. The collection also documents Dr. Miller's activities as chair for the Nevada State Society chapter of the National Society of the Daughters of the American Revolution (NSDAR) and as a member of the National Society Sons and Daughters of the Pilgrims Southern Nevada Chapter.

The Helen J. Stewart Papers (1869-1978) document the life of Las Vegas, Nevada pioneer, Helen J. Stewart. It includes correspondence between Stewart and her children as well as various family legal papers and certificates. The collection also contains Helen J. Stewart's 70th birthday scrapbook, a ledger, and a day book from 1904-1919, as well as several photograph albums and information related to the family burial plot.

The Jeanne Russell Janish Papers (1833-1994; bulk dates 1894-1994) consist of journals, diaries, research files, academic records, correspondence, photographs, and paintings and drawings that document the life and work of the illustrator and watercolorist. The paintings and drawings consist of approximately 140 watercolors and pencil sketches of various scenes and subjects, created in China, Florida, and the American Southwest. The collection also includes writings by Jeanne’s husband, Carl F. Janish.

The Mollie Gregory Collection of Oral Histories contains audio interviews and brief transcripts that focus on welfare, family, and women's issues in Nevada from 1970 to 1974. Gregory interviewed Nevada residents including Maya Miller, Ruby Duncan, and Mary Wesley, who described their lives during the anti-poverty and women's rights campaigns in the early 1970s. The collection documents views on welfare; the Equal Rights Amendment; race, discrimination, and civil rights; and political campaigns.

The Julius Jensen Professional Papers (1630-1979) consist of medical research notes, medical journal reprints, manuscript and article drafts, professional and personal correspondence, business and financial records, investment information, travel information, photographic prints, art prints, and collectible books and magazines.

The Jacob E. Von Tobel Photograph Collection contains black-and-white photographs of the pioneer Von Tobel family from 1900 to 1980. The collection includes photographs of the Von Tobel family, early Las Vegas, Nevada buildings and landmarks, and aerial photographs of Las Vegas and surrounding areas.