The Von Tobel Family Papers (1905-1997) consist of photographs, correspondence, and financial reports pertaining to the early Las Vegas Von Tobel family and their businesses, which they operated in Las Vegas, Nevada. The collection also contains newspaper clippings covering the life of Edward Von Tobel Sr. and some of the operational business records of the Von Tobel Hardware Store No. 301.

The Clyde F. Merrick Photographic Slides (approximately 1971-1979) contain color photographic slides taken by Clyde F. Merrick, longtime resident of Las Vegas, Nevada. The majority of slides in this collection depict signs for different businesses around Las Vegas including the Las Vegas Strip and the Westside. Some of the businesses documented in this collection includes Fong's Garden, Leon's Shear Magic Beauty Salon, Lucas and Son's Antiques, Dick's Tricky Trikes, Mohan's Custom Tailors, the Twenty Grand Club, Owens TV Repair, and Caesars Palace. The collection also documents a variety of different types of businesses around Las Vegas including bars and nightclubs, beauty salons, car washes, gas stations, and restaurants. Merrick was also a car racing hobbyist and a number of slides in this collection depict what is presumed to be the Las Vegas Speedrome racetrack (later known the Las Vegas Motor Speedway). This collection also includes photographs of locations outside of Las Vegas and Southern Nevada.

The collection consists of letters, greeting cards, survey maps, newspaper clippings, legal papers, photographs, collected recipes, land sales and expense journals, and survey reference books. The material was created or collected by pioneering Nevada surveyor, engineer, and real estate entrepreneur J. T. (John Thomas) McWilliams and his wife, Iona, between 1900 and 1968.

The Leon Rockwell Photograph Collection (approximately 1850-1979) contains black-and-white photographic prints, negatives, and slides, as well as postcards and tintypes. The images portray the lives of the Rockwell family in southern Nevada, their travels throughout New York and the western United States, and their immediate and extended family members. Also included are images of the volunteer and early firefighters of Las Vegas, Nevada, the Rockwell's family cabin at Mount Charleston, Nevada, and the Rockwell family home in Las Vegas. Portions of the images are from the Rockwell family travels across Nevada, Utah, New Mexico, Arizona, and California and depict historic locations such as Cove Fort, Utah; Rhyolite, Nevada; and Pueblo Grande de Nevada.

The Howard Hughes Public Relations Reference Files (1931-1997) were compiled by Richard "Dick" Hannah, vice-president of the Los Angeles public relations firm Carl Byoir & Associates, which was hired to direct public relations for Hughes’ companies. The collection is primarily composed of newspaper clippings organized into reference files. A significant number of the files contain articles about Howard Hughes’ personal life, the operations of his companies, and legal and political disputes involving Hughes and his companies. The files also document a range of other subjects related to his business ventures, including aviation, aerospace, defense industries, motion picture studios, film stars, communism in Hollywood, and the House on Un-American Activities Committee (HUAC). Later in life Hughes became obsessed with how he was being portrayed in the media. In addition to collecting magazine articles, newspaper clippings, transcripts, screenplays, and books that referenced him. He also collected newspaper clippings about the activities of print media outlets, columnists, radio-television stations, current and former employees, and competitors. The collection also contains newspaper clippings about Watergate, organized crime, gambling, and Las Vegas and contains press releases, correspondence and records generated by Carl Byoir & Associates as well as Rosemont Enterprise, Inc.