The Nevada Watercolor Society Records (1969-2009) contain watercolor paintings and organizational records pertaining to the Nevada Watercolor Society, a non-profit organization that aims to promote watermedia painting and art appreciation. Organizational records contain materials including by-laws, articles of incorporation, newsletters, exhibit information, tax and financial records, receipts, photographs, negatives, and newspaper clippings. The collection also includes paintings by society members and newspaper clippings about art exhibitions and artists in Las Vegas, Nevada.

The Larven Mason Photograph Collection (approximately 1930 to 1939) consists of photographic negatives with corresponding black-and-white photographic prints, as well as additional black-and-white photographic prints. The images depict the mining equipment, personnel, operations, and housing for the Blue Diamond Corporation mine in Blue Diamond, Nevada.