The Hiram W. Johnson papers include materials from Johnson's time as a Senator from California that pertain to the Colorado River, Hoover dam, Colorado River Compact, and All-American Canal.

Hiram W. Johnson (1866-1945) was the Governor of California from 1911 to 1917 and a United States Senator from the state of California from 1917 to 1945. As a Senator, Johnson supported the construction of the Boulder dam (later called the Hoover dam). He co-sponsered the Swing-Johnson bill, with Representative Phil D. Swing, that set forth the plan for the study of the Colorado River, its flooding, the building of a dam, and electricity generation.

1.8 linear feet (2 boxes and 2 flat file folders)

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