The Oran K. Gragson Papers (1955-1998) contain former Las Vegas, Nevada Mayor Oran K. Gragson's professional and personal papers, and include correspondence, files concerning Gragson's tenure as Mayor of Las Vegas, Nevada, arbitration documents from disputes between labor unions and Las Vegas casinos, committee notes, financial plans, and documents from Clark County and Las Vegas government departments. The collection also contains city development plans, environmental reports, political party documents, memorabilia, ephemera, photographs, awards, newspaper clippings, and scrapbooks.

The Syphus-Bunker Papers date from 1891 to 1994, with the majority of the collection consisting of correspondence between Mary Etta Syphus and John Mathieson Bunker from 1891 to 1895. The collection also contains correspondence from friends and relatives, and documentation related to Mary Etta Syphus' attendance at Brigham Young Academy Church Normal Training School. Other materials include family history information and two color photographs of family homes. The collection also includes typed transcripts of the correspondence.

The Edward Halligan Papers (1962-1966) contain instructions and booklets on atomic testing, newspaper clippings, and newsletters. There is information on the underground detonations of "Project Long Shot," and "Project Rover" that took place at the Nevada Test Site. Also included is a speech, given by Halligan, titled "Technical Operations on Project Long Shot."

The Clark County Child Care Association (CCCA) Records (1957-1975) contain correspondence, fliers, dues paid rosters, insurance information, bills, memberships cards, and receipts. Also included are miscellaneous dues-related documents, minutes of CCCA (Nevada) general membership and executive board meetings, and a newsletter.

The Sam Siegel Professional Papers date from 1958 to 1968 and contain the corporate records of Siegel's Clark Dade Investment Enterprises, Inc., a Las Vegas-based small business. Materials include a corporate record book listing names of stockholders/subscribers, correspondence regarding business transactions, a book of blank stock certificates, and black-and-white photographic prints of Siegel with Jayne Mansfield. One of these prints is signed by Jayne Mansfield.

The Raymond Germain Professional Papers (approximately 1960 to 1970) contain material and photographs related to California Post Offices.

The Verna Mortensen Papers (1966-1979) document the work of the Daughters of the Utah Pioneers Clark County chapter to preserve and restore the Las Vegas, Nevada Mormon Fort. The collection contains newspaper clippings, notes, and a grant application for the Mormon Fort. It also includes an undated article about the history of the Las Vegas area and two eulogies given for Verna Mortensen.

The Arthur Gamlin & Co. Records (1949-1950) consists of a sales price guide of Arthur Gamlin & Co., a gaming table manufacturer, which was located in Kansas City, Missouri. The price guide is dated 1949 and contains detailed price lists based on cloth costs, sizes and colors for table games such as blackjack, chemin de fer, craps, and faro. Also included are odds calculator sheets, photographs, and negatives of the various gaming table layouts available.

The Leonard Blood Papers (1888-1962) consist photographs and personal documents from his work in the United States Navy, Las Vegas Labor Commission, and on the Boulder (Hoover) Dam in Nevada. The bulk of the papers date between 1930 to 1950. Included are correspondence, telegrams, newspaper clippings, a scrapbook, family photographs, and various ephemera.

The Monte Carlo Club Las Vegas, Nevada Records (1944-1957) are comprised of records of the Monte Carlo Club located at 15 Fremont Street in Las Vegas, Nevada. Materials include founding documents, corporate records, and letterhead.