The Howard Hughes Public Relations Photograph Collection depicts the activities of businessman Howard Hughes from 1930 to 1950. The photographs primarily depict aircraft flown by Hughes or designed by the Hughes Aircraft Company, including the XF-11 reconnaissance plane, the HK-1 Hercules (or "Spruce Goose"), and the Hughes H-1 Racer. The photographs also depict celebrations following Hughes's circumnavigation flight in New York City, New York and Chicago, Illinois in 1938. Lastly, the photographs include Hughes testifying in front of the Senate Special Committee to Investigate the National Defense Program in 1947.

The Howard Hughes Film Production Records (1912-1992) represent Howard R. Hughes, Jr.'s Hollywood film production achievements through records from companies owned or established by Hughes. The bulk of the records date between 1926 and 1960 and include production and corporate materials from sixteen films, as well as materials related to Hughes' organizations outside of film development. Materials include documents, photographic prints and negatives, blueprints, line drawings, newspaper clippings, posters, paintings, and artifacts.