The University of Nevada, Las Vegas Arboretum Project Records are comprised of documents, brochures, and photographs dating from 1976 to 2012 documenting both the creation and operations of the Arboretum at the University of Nevada, Las Vegas (UNLV). The collection includes photographs of planning the Arboretum, the opening ceremony, and aerial photos of the UNLV campus. The brochures include guides to the Arboretum, lists of types of plants grown, and information on the Xeric Garden.

The Leon Rockwell Papers (1829-1986), consist of materials that document Leon Rockwell's life in Las Vegas, Nevada from 1906 until his death in 1968. Included are diaries, correspondence, photographs, postcards, Las Vegas community event programs, ledger sheets, business cards, and scrapbooks. There are a number of books, information on organizations and businesses that Rockwell owned, real estate documents, and early records of the Las Vegas Volunteer Fire Department, of which Rockwell was an original member.