Ralph Henry Cameron served as a Senator from Arizona in the United States Congress from 1909 to 1927. A member of the Republican Party, Ralph Henry Cameron contributed to the legislative process during 3 terms in office.

Ralph Henry Cameron’s service in Congress occurred during a significant period in American history. As a member of the Senate, Ralph Henry Cameron participated in the democratic process and represented the interests of constituents.

Ralph Henry Cameron (October 21, 1863 – February 12, 1953) was an American businessman, prospector and politician who served as both Arizona Territory’s Delegate to Congress and as an Arizona United States Senator. As a Territorial delegate, he saw Arizona achieve statehood in 1912. Cameron’s greatest achievement in the US Senate was the authorization for the Coolidge Dam. On the business front, Cameron was active early in efforts to develop the Grand Canyon in what is now viewed as a classic example of rent-seeking. Toward this end, he often used his political influence to help his business interests. Popular among residents of northern Arizona for much of his political career, his fortunes changed after he reached the U.S. Senate and voters began to view his actions as self-serving.