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 Jacob E. Von Tobel Photograph Collection contains black-and-white photographs of the pioneer Von Tobel family from 1900 to 1980. The collection includes photographs of the Von Tobel family, early Las Vegas, Nevada buildings and landmarks, and aerial photographs of Las Vegas and surrounding areas.

The Zelvin Lowman Papers (1938-2001) contain the papers of Assemblyman Zelvin "Zel" Lowman who served in the Nevada State Legislature from 1967 to 1977. Included are court records, publications, correspondence, reports, and newspaper clippings pertaining to his time in office. Subjects include the Clark County School District, school busing, water and air quality issues, capital punishment, medical malpractice, mental health legislation, and the Equal Rights Amendment (ERA). The 2018 addition includes newspaper clippings, awards, citations, school records, photographs, occasional cards, invitations, and extensive material on the Lowman's involvement with the Boy Scouts and Girl Scouts of America. Also included are books written by Zel Lowman about scouting and the Presbyterian Church.