The Harmon Family Photograph Collection contains black-and-white and color photographic prints, negatives, postcards, and slides of the Harmon family in Las Vegas and Boulder City, Nevada between approximately 1900 and 1983. Las Vegas photographs depict the Harmon family in their home, at a ranch, and at Las Vegas High School. Boulder City photographs include a wedding and a view of Black Canyon, Nevada. Lastly, the collection also includes photographs of the Harmon family with various people, including the Wengert family and Howard Cannon, at receptions, ceremonies, and posing in front of Las Vegas buildings.

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.