The J. A. Tiberti Construction Records include material documenting construction work performed throughout Las Vegas, Nevada between 1950 and 2011 including bid packages, specifications, contracts, correspondence, company records, legal documents, and architectural plans.

The Spencer and Georgia Butterfield Papers (1890s-1978) consist primarily of photographs and scrapbooks pertaining to Spencer and Georgia Butterfield, a prominent Las Vegas, Nevada couple involved in local business and civic activities. The collection also includes newspaper clippings of their social activities, correspondence, and assorted personal memorabilia.

The Spencer and Georgia Hanna Butterfield Photograph Collection (approximately 1900-1978) consists of black-and-white photographic prints and negatives of the Hanna and Butterfield families. It also contains images of early and prominent residents of Las Vegas, Nevada such as James Cashman Sr., Las Vegas Chamber of Congress members, Union Pacific Railroad president George Ashby, and many other notable persons from early Las Vegas. The collection also includes photographs taken in Elko County, Nevada, the Hoover Dam, and other Las Vegas area images.

The Nevada Mining Collection is comprised of records that document mining and mines in Nevada from 1842 to 1966. The majority of the collection includes records of various mines and mining companies located in the Esmeralda, Lincoln, Clark, White Pine, and Nye counties, dating from 1900 to 1928. The collection includes financial, administrative, and business related records; photographs of miners, mining camps, and towns; correspondence; maps; newspaper clippings, pamphlets, newsletters, and booklets.

The C. A. Earle Rinker Papers (1880-1960) contain materials that document the history of early twentieth century Goldfield, located in central Nevada, as well as the life of Rinker. Materials in the collection include correspondence, mining prospectuses, maps, ledgers, souvenirs, photographic negatives, and ephemera that document mining and daily life. Also included is biographical material that tells the story of Earle Rinker and his family before 1906 and after 1909, documenting his life in Indiana and Illinois.