During the time in the early 1920s when legislation was being crafted to authorize a dam on the Colorado River, Herbert Hoover served as Secretary of Commerce for President Warren Harding.

President Herbert Hoover remains the only U.S. president to have been born in Iowa. On Aug. 10, his hometown will celebrate the 150th anniversary of his birth with Hoover's Hometown Days.

Died: October 20, 1964 . Despite being at the helm of government when the stock market crashed and the Great Depression set in, Herbert Hoover was not the do-nothing president his detractors claimed.