Education
Born in Atchison, Kansas, Mize attended the public schools, and studied at the University of Kansas School of Business from 1935 to 1939.
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Born in Atchison, Kansas, Mize attended the public schools, and studied at the University of Kansas School of Business from 1935 to 1939.
He joined the United States Naval Reserve in 1940, where he served on active duty in the South Pacific Theater from 1941 to 1945, and was released to inactive service as a lieutenant commander. He was awarded the Bronze Star with Combat V.
After World World War II, Mize served in a number of leadership positions in business. He was treasurer of a hardware company from 1945 to 1951.
He served as vice president of Locomotive Finished Materials Company from 1951 to 1958, and as vice president of Valley Company, Incorporated. from 1958 to 1964.
He served as chairman of the board of trustees of Mount Saint Scholastica College, Atchison, Kansas. Mize was elected as a Republican to the Eighty-ninth, Ninetieth, and Ninety-first Congresses (January 3, 1965 – January 3, 1971), unsuccessful candidate for reelection in 1970 to the Ninety-second Congress.
He served as chairman of the United States Tariff Commission, 1971. He was a resident of Louisiana Jolla, California, until his death there on January 11, 1994 of bladder cancer.
He owned and operated a cattle ranch in New Mexico and a farm in Atchison County, Kansas, where he was a member of the Atchison School Board. He served as member of the School of Business Administration Advisory Board and the athletic board of the University of Kansas.