The John C. Olsen Photograph Collection, approximately 1950 to 1969, consists of black-and-white photographic prints and negatives. Images depict scenes from the annual Helldorado Celebration in Las Vegas, Nevada, the Shriners’ Parade in downtown Las Vegas, various hotels along the Las Vegas Strip, the Last Frontier Village at the Last Frontier Hotel, Las Vegas, natural landscapes at Mount Charleston and Rhyolite, Nevada, Hoover Dam and Lake Mead, Twin Lakes, and petroglyphs in Valley of Fire Nevada State Park.

The American Society of Landscape Architects Nevada Chapter Photographs (2000-2001) consist of color photographic prints which depict chapter members and leaders at events, including the Pink Flamingo Awards Banquet at the Flamingo Hilton and a lecture series at the University of Nevada, Las Vegas School of Architecture. Other images document strategic planning committee meetings.

The Freda Klein Papers (1967-1997) include a detailed biography and personal reflection penned by Klein, as well as a photocopied scrapbook. The scrapbook is comprised of correspondence and newspaper clippings that detail her career with the State of Nevada Employment Security Department and volunteer work with the Henderson Chamber of Commerce, Private Industry Council, and Soroptimist International of Henderson, Nevada.

The Ken Tiffany Music Scores (approximately 1956-1999) comprise a collection of published sheet music and original handwritten scores composed by Tiffany. The material also includes several pictures of Tiffany.