The Boulder City 31ers Photograph Collection depicts the construction of the Hoover (Boulder) Dam and the development of Boulder City, Nevada from 1930 to 1987. The photographs primarily depict construction of the Hoover Dam, but they also depict workers, dormitories, the Colorado River, stores, and Black Canyon.
The black and white view of Howard Hughes surrounded by unidentified people at the Chicago Municipal Airport. Printed on a paper included with the photograph: "Millionaire Speed King. Howard Hughes, Multimillionaire movie producer and speed flyer, at the Chicago Municipal Airport preparing for a flight to Los Angeles, Calif., in which he hopes to set a new speed record. Credit Line (ACME) 5/14/36."