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.

The MGM Mirage Records on Mandalay Resort Group consists of materials from Mandalay Resort Group’s office of public relations and community affairs records, which was closed after Mandalay’s corporate merger with MGM Mirage in 2005. The files, dating from 1968 to 2005, provide documentation of Mandalay Resort Group’s external affairs and internal operations. They contain subject files, photographs, negatives, slides, correspondence, VHS tapes, corporate publications, press releases, press kits, wholesale room agreements, hotel ephemera, employee newsletters, and press clippings. Of particular interest are files and photographs documenting the planning, development, construction, and opening of the Mandalay Resort Group properties.

The Del Webb Corporation Photograph Collection (approximately 1957 to 1988) consists of black-and-white photographic prints, black-and-white oversize reprints, negatives, and color slides focusing on the Mint Hotel and Casino in downtown Las Vegas, Nevada. Images depict the construction of a twenty-six story high-rise addition to the property, its grand opening and anniversary celebrations, the Mint 400 Off-Road race festivities, interior shots of the casino floor, restaurants and lounges, and a salon. Also included are exterior images of properties on Fremont Street considered to be competitors of the Mint, advertisements and billboards, and photographs of Del E. Webb and associates.