The Elizabeth and Charles Pratt Personal Papers consist of correspondence, travel information, and photographs from the Pratt family dating from 1895 to 1953. The majority of correspondence in the collection is between Charles Pratt and his wife, Alice Elizabeth Margaret "Diane" Pratt. The collection also contains correspondence between Elizabeth Pratt's parents and her literary journals from her time attending Swarthmore College, in Swarthmore, Pennsylvania.

The collection is comprised of drawings (1950-1990) completed by American architect Martin Stern and/or his architectural firm, Martin Stern Jr., AIA Architect and Associates, and contains 400 cubic feet of materials including 710 drawings from over 300 different projects involving over 100 buildings. Stern’s work focused on the resort centers of Las Vegas, Nevada; Reno, Nevada; Lake Tahoe, Stateline, Nevada; and Atlantic City, New Jersey. The materials feature hand-drawn architectural drawings, ranging from pencil and ink on tracing paper preliminary sketches to ink on Mylar (TM) construction documents, and a number of artist’s renderings, used for presentations and promotional materials. The drawings also contain work from a number of consultants, engineers, and other architects who collaborated on the development of the various projects. The collection includes architectural drawings for: hotels, casinos, integrated casino resorts, office towers, multi-family residential developments, and custom single-family homes.

The Nevada Consolidated Copper Company Records (approximately 1907-1978) contain the business records of the company, including correspondence, freight bills, ledgers, maps, leaching data, and books relating to mining. The majority of the records post-date the company's name change to Kennecott Mining Company.

The Underground House of Las Vegas Collection (1964-2004) consists of newspaper clippings, magazine articles, books, photographic prints, and digital images detailing the construction and history of Girard "Jerry" B. Henderson’s "Underground House," a Las Vegas underground dwelling completed in 1978.