An image of the memorial plaque after it was unveiled at Boulder Dam. Spectators of the event gathered beneath the plaque commemorating the 96 men who had died during the construction of the dam. Transcribed across the center of the plaque: "They died to make the desert bloom." Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of men testing the valves for jet flow gates (outlet works) at the Boulder Dam construction site (name officially changed to Hoover Dam in 1947).
An image of two men standing by a parked automobile and watching water discharging from the jet flow gates of Hoover (Boulder) Dam during construction. The name was officially changed to Hoover Dam in 1947.