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 D. Kenneth Richardson Papers on the Hughes Aircraft Company (1950-2011) contains correspondence, speeches, photographs, Hughes Aircraft Company executive meeting notes, and various publications from Hughes Aircraft Company and other aeronautical companies. Also included are published papers written by Richardson and a productivity study published by the Hughes Aircraft Company.