The Irma McGonagill Papers (1907-1970) document her life in Tonopah, Nevada. The collection includes handwritten notes about her life in Tonopah, a stock certificate from the Silver Bow mine, and correspondence with Nanelia S. Doughty about life in Tonopah.

The Harry Floyd Alter Photograph Collection (1905-1916) is comprised of black-and-white photographic prints and negatives. The images depict scenes in Las Vegas, Nevada, including the Las Vegas Ranch, the Arizona Club, and baseball teams and fields. Also included are images of Harry Floyd Alter and his friends.

The Bergman Walls & Associates architectural drawings are comprised of architectural and interior drawings created between 1997 and 2017. The drawings primarily focus on Las Vegas, Nevada properties, but also include drawings for projects around the United States and international locations. Typical drawing types include initial design sketches, exterior and interior perspective renderings, site plans, floor plans, sections, elevations, and detail drawings and diagrams of specific building components. The material is available in the form of physical drawings, digital scans of original content, and computer generated renderings, with some material in the collection unique to either physical or digital formats.