The Nat Hart Professional Papers contain the business records, personal papers, and photographs of Las Vegas, Nevada chef and restaurateur Nat Hart, who served as the Corporate Vice-President of Food and Beverage for Caesars World in the 1970s and 1980s. Papers date from 1930 to 2000 and include restaurant training and service manuals, business proposals, architectural drawings, recipe cards, cookbooks, menu specifications, photographs, scrapbooks, awards, news releases, and correspondence.

The John R. Klai II, FAIA Papers (1983-2024) are comprised of the personal papers of American architect, John R. Klai II, FAIA. Materials include commendations presented to Klai for his achievements in the architecture and interior design profession from organizations like AIA Las Vegas; the National Council of Architectural Registration Boards (NCARB); and the Nevada State Board of Architecture, Interior Design and Residential Design. The collection also includes digital images of plaques and trophies presented to Klai for his philanthropic work in the Las Vegas community. The professional files in this collection include publications featuring the work of Klai Juba Wald architecture + interiors, Klai's 2015 AIA Fellowship submission portfolio, magazine features about Klai, and a commemorative photo book of Klai Hall at North Dakota State University. Also included are a small number of Klai's personal sports memorabilia, including tickets for NCAA men's basketball tournaments in 1987 and 1989.

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.