Edwin Keith Thomson (February 8, 1919 – December 9, 1960), usually known as Keith Thomson, was a United States representative from Wyoming. A highly decorated World War II veteran, Thomson served three terms in Wyoming's only U.S. House seat. On November 8, 1960, he was elected to the U.S. Senate, but died a month later of a heart attack before taking office.

Quick Facts United States Senator-elect from Wyoming, Preceded by ...

Keith Thomson
United States Senator-elect from Wyoming
In office Died before taking office
Preceded by	Joseph C. O'Mahoney
Succeeded by	John J. Hickey
Member of the U.S. House of Representatives from Wyoming's at-large district
In office January 3, 1955 – December 9, 1960
Preceded by	William Harrison
Succeeded by	William Harrison
Member of the Wyoming House of Representatives
In office 1952–1954
Personal details
Born	Edwin Keith Thomson (1919-02-08)February 8, 1919 Newcastle, Wyoming, U.S.
Died	December 9, 1960(1960-12-09) (aged 41) Cody, Wyoming, U.S.
Resting place	Arlington National Cemetery
Political party	Republican
Spouse	Thyra Godfrey ​ (m. 1939)​
Children	3
Education	University of Wyoming (LLB)
Military service
Allegiance	United States
Branch/service	United States Army
Years of service	1941–1946
Rank	Lieutenant Colonel
Battles/wars	World War II

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Born in Newcastle, Wyoming, he grew up on a ranch in Crook County and attended public schools in Beulah, Wyoming, and Spearfish, South Dakota. He graduated in 1941 from the University of Wyoming Law School in Laramie. While in law school he met his wife, Thyra Godfrey Thomson, and they were married in 1939.^[1]

Thomson was called to active duty on March 24, 1941 and commanded the Second Battalion, 362nd Infantry Regiment, 91st Division. He was released from active duty as a lieutenant colonel on January 24, 1946. He had been admitted to the bar in 1941 and commenced the practice of law in Cheyenne in February 1946; he was a delegate to the 1952 Republican National Convention in Chicago and was a member of the Wyoming House of Representatives from 1952 to 1954.

Thomson was elected as a member of the Republican Party to the Eighty-fourth, Eighty-fifth, and Eighty-sixth Congresses and served from January 3, 1955, until his death. Thomson voted in favor of the Civil Rights Acts of 1957 and 1960.^[2][3][4] He did not seek renomination to the Eighty-seventh Congress, but was elected to the United States Senate on November 8, 1960, for the term commencing January 3, 1961. However, he died of a heart attack in Cody, Wyoming in December, before his term in the Senate began. Democratic Governor John J. Hickey appointed himself to the seat but was defeated in a 1962 special election to serve out the term by Republican Milward L. Simpson. Thomson was interred at Arlington National Cemetery.^[5]

Following Thomson's death, his wife Thyra Thomson was elected in 1962 as Wyoming Secretary of State. She was re-elected to five more terms, and served in that office for twenty-four years, until 1987.^[6][7][8]

• List of United States Congress members who died in office (1950–1999)