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.
Howard Hughes (second from left) standing in front of the experimental helicopter XH-17, Flying Crane in October 1952. From left to right: Rea Hopper, Director of the Aeronautical Division, Hughes Aircraft Company; Howard Hughes; Clyde Jones, Director of Engineering, Hughes Tool Company Aeronautical Division; Warren Reed, Assistant; Colonel Carl E. Jackson, Air Research and Development Headquarters, Baltimore; Gale J. Moore, Pilot; and Chal Bowen, Flight Engineer/Co-pilot.