AB, Southwest Missouri State University, 1935; Juris Doctor, Washington University, 1938.
Born in Buffalo, Missouri on June 6, 1914 to Philip Allen Bennett and Mary Bertha (Tinsley) Bennett, he received his Bachelor of Arts from Southwest Missouri State University in 1935 and earned a Juris Doctor from the School of Law at Louis in 1938, after which he entered private practice. While practicing law, he was elected to the Greene County, Missouri Republican Central Committee, and managed his father"s two Congressional election campaigns. When his father died in office in early 1943, Marion was chosen in a special election to complete his father"s term in the 78th Congress.
He was 28 years old.
Winning reelection twice, he served in the 79th and 80th Congresses. The delegation"s members toured the United States speaking and reporting on what they had seen of the horrific conditions in the camp. Bennett is quoted in the New York Times on May 6, 1945, "I left Buchenwald convinced that every German must be killed." Losing his reelection bid in 1948, Bennett was appointed a trial commissioner to the federal Court of Claims, starting the day after his term ended, January 4, 1949.
In 1950 he became an Air Force Reserve Colonel, a position he held until 1974.
He also rose to become Chief Trial Commissioner at the Court of Claims in 1964, and was nominated in 1972 to be an Associate Judge. By enactment of the Federal Courts Improvement Acting of 1982 he became a Circuit Judge of the United States. Court of Appeals for the Federal Circuit.
He became a Senior Circuit Judge on March 1, 1986, and continued to sit until 1997. He died in Alexandria, Virginia, on September 6, 2000, and is buried at Hazelwood Cemetery in Springfield, Missouri.
Member Greene County Republican Center Committee, 1938-1942. Member 78th-80th Congressesfrom 6th Missouri District Colonel United States Air Force Reserve. Retired; Member American Bar Association, Federal Bar Association (national county 1958-1976), District of Columbia Bar Association, Reserve Officers Association, Delta Theta Phi.
Married June Young, April 27, 1941 (deceased May 1991). Children: Ann, William Philip.