The Maryellen Vallier Sadovich Papers include transcripts and handwritten and photocopied documents pertaining to early Nevada history from 1852 to 1934. Documents include information about the boundaries of Nevada; mail service contracts between Utah and California; documents from the Department of the Interior, Office of Indian Affairs concerning reservations in Southern Nevada; a copy of Gibb's Phonetic alphabet of Southern Nevada Native American languages; maps of tributaries in Southern Nevada; notes about the National Archives photographic holdings of Nevada; and documents from mining reports.

The Thunderbird Hotel Records are comprised of material that documents the work of the Las Vegas, Nevada hotel's entertainment department from 1964 to 1973. The records consist of photographs, memorandum, newspaper clippings, and publicity materials.