The Prince Stanislaus J. Bielski Papers, 1908-1979, are comprised of legal and personal documents, including letters and genealogical records, primarily referencing litigation between Prince Stanislaus J. Bielski and his wife, Jeannine Bielski De Ayala. Also included are photographs of Bielski, his family, and friends.

The collection consists of two watercolor paintings donated and autographed by Las Vegas resident O.C. “Boots” LeBoutillier. The materials were painted and signed by Robert Carlin depicting the crash of Baron Manfred Von Richthofen's (the "Red Baron") airplane on April 21, 1918. LeBoutillier is also depicted in the paintings flying above as the "Red Baron" crashes after being shot down. The paintings were created approximately between 1970 to 1979.

The Dr. Howard Zellhoefer Collection of Artwork contains three paintings collected by Dr. Howard William Zellhoefer. Two paintings are by K. Nakamine of landscapes in Okinawa, Japan from 1949, and the third painting is a 1962 Ferdinand Burgdorffof a desert landscape, possibly Mojave Desert, California.

The Ernest Mitchell Pratt Photographs (approximately 1932-1936) consist of black-and-white photographic prints, signed and unsigned, taken by Pratt while Hoover Dam was under construction. Many prints are signed and mounted, and two are noted as award-winning photographs shown at the Annual International Salon of Camera Pictorialists in Los Angeles, California. There are additional working prints included alongside the final prints for most of the scenes. Also included in the collection is one small photograph of Pratt. This collection was formerly known as the Price Photograph Collection.

The Paul May Photograph Collection (1969) consists of black-and-white and color photographic prints. The images primarily depict Nevada Assemblyman Paul May alongside Nevadan senators and congressmen, including Senator Paul Laxalt. Other images are portraits of May.

The Clarence Ray Photograph Collection (approximately 1930-1960) consists of black-and-white photographic prints and negatives of Clarence Ray, casino scenes of people playing table games, and images of Ray with black activists in Las Vegas, Nevada.

The Thomas J. Osborne Photograph Collection (approximately 1890-1930) consists of black-and-white photographic prints, negatives, and slides. Images depict the family of Thomas J. Osborne, his law office, the family home, and views of the town of Pioche, Nevada and surrounding areas. Several images depict local mines and unidentified mine workers.