The Edythe and Lloyd Katz Photographs (1947-1986) contain photographs of the businesses operated by Las Vegas, Nevada entrepreneurs Edythe and Lloyd Katz. The photographs primarily depict the movie theaters purchased by the Katz Family, including the Guild Theatre (formerly the Palace Theatre) and the Fremont Theatre. The photographs also depict the Katz Family and the Helldorado Days parade.

The collection is comprised of drawings (1965-1996) completed by American architect Gary Guy Wilson and/or his architectural firm, Gary Guy Wilson, AIA, Architect Studios and contains 613 sets of drawings from over 250 different projects. Primarily focused on the Las Vegas, Nevada area, the materials feature hand-drawn architectural drawings, ranging from preliminary sketches to construction documents, and a number of printed computer aided drawings. The drawings also contain work from a number of consultants, engineers, and other architects who collaborated on the development of the various projects. The drawings include: commercial and professional buildings of varying scales, such as convenience stores, hotels, casinos, shopping centers, and office developments; schools; military buildings at both Nellis and Indian Springs Air Force Bases; multi-family residential developments; and custom single-family homes located throughout the Southwest (United States).