An image of Governor Herbert Ham and an unidentified man at the Boulder Dam decennial event. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of airplanes flying over Boulder Dam and spelling the word "NAVY" for the dam's decennial. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of airplanes flying over Boulder Dam and spelling the word "NAVY" for the dam's decennial. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of airplanes flying over Boulder Dam and spelling the word "NAVY" for the dam's decennial. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of film crews and photographers at Boulder Dam on the day it was dedicated by President Franklin Delano Roosevelt. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of film crews and photographers at Boulder Dam on the day it was dedicated by President Franklin Delano Roosevelt. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of a film crew shooting penstock valves while they were open for the Boulder Dam dedication. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of a man standing atop a wooden platform as he presents a speech for the unveiling of the memorial plaque at Boulder Dam. Positioned behind the man are seated spectators of the event, as well as the curtain-covered memorial plaque.