The installation of the original lighting system installed at the Boulder City High School athletic field in Boulder City, Nevada. Bruce Eaton, right center, assists in placement of concrete.

The black and white view of Hiram "Tommy" Thurlow and the Lockheed 14 aircraft in New York, New York. Typed on a piece of paper attached to the image: "Readying Hughes' plane for Paris flight. New York City-- Mechanics hastened to put Howard Hughes' Lockheed 14 monoplane in shape for a flight from Floyd Bennett Airport here, to Paris. Motor trouble forced postponement and helpers were working under injunction to have the ship ready for a takeoff "at the earliest possible moment," July 9. Photo shows: Lieut, Thomas A. Thurlow, navigator, calibrating compass on plane. Credit Line (ACME) 7/9/1938."

Black and white image of businessmen and engineers affiliated with Hoover Dam. From left to right: W. A. Bechtel, First Vice President, Six Companies, Inc.; Walker R. Young, Construction Engineer, Bureau of Reclamation; Elwood Mead, Commissioner, Bureau of Reclamation, F. T. Crowe, General Superintendent, Six Companies, Inc.; R. F. Walter, Chief Engineer, Bureau of Reclamation. Note: Boulder Dam was officially renamed Hoover Dam in 1947.