Edward P. Costigan, U.S. Senator

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Edward Prentiss Costigan

Birthdate: (64)
Birthplace: Prince William, VA, USA
Death: January 17, 1939 (64)
Denver, Denver, CO, USA
Immediate Family:

Husband of Mabel Costigan

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Immediate Family

About Edward P. Costigan, U.S. Senator


Edward Prentiss Costigan (July 1, 1874 – January 17, 1939) was a Democratic Party politician who represented Colorado in the United States Senate from 1931 until 1937. He was a founding member of the Progressive Party in Colorado in 1912.

Early life and education

Edward Prentiss Costigan was born in King William County, Virginia in 1874. He graduated from Harvard University in 1899.


The following year, he moved to Denver, Colorado, where he had gotten his first position as a lawyer.

Costigan was a founding member of the Progressive Party in Colorado in 1912, but lost the election for governor. President Woodrow Wilson appointed Costigan as a member of the United States Tariff Commission in 1917.

He was elected to the United States Senate as a Democrat in 1930. Oscar L. Chapman managed his campaign.

Costigan-Wagner Bill

Colorado Democratic Senator Edward P. Costigan and New York Democratic Senator Robert F. Wagner sponsored a federal anti-lynching law in 1934. In 1935 Senate leaders tried to persuade President Franklin D. Roosevelt to support the Costigan-Wagner Bill. Roosevelt was concerned about a provision of the bill that called for the punishment of sheriffs who failed to protect their prisoners from lynch mobs. He believed that he would lose the support of the white voters in the South by approving this, and lose the 1936 presidential election.

The Costigan-Wagner Bill received support from many members of Congress but the Southern block managed to defeat it in the Senate. The national debate that took place over the issue again brought renewed attention to the crime of lynching. By the mid-1939s, the rate of the crime had finally dropped, mostly below 20 annually.

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Edward P. Costigan, U.S. Senator's Timeline

July 1, 1874
Prince William, VA, USA
January 17, 1939
Age 64
Denver, Denver, CO, USA