Martin Dies, Jr., American lawyer, judge, and politician (d. 1972)
Martin Dies Jr. (November 5, 1900 – November 14, 1972), also known as Martin Dies Sr., was a Texas politician and a Democratic member of the United States House of Representatives. He was elected as a Democrat to the Seventy-second and after that to the six succeeding Congresses (March 4, 1931 – January 3, 1945). In 1944, Dies did not seek renomination to the Seventy-ninth Congress, but was elected to the Eighty-third and to the two succeeding Congresses (January 3, 1953 – January 3, 1959). Again, he did not seek renomination in 1958 to the Eighty-sixth Congress. In 1941 and 1957, he was twice defeated for the nomination to fill a vacancy in the United States Senate. Dies served as the first chairman of the Special Committee to Investigate Un-American Activities from 1937 through 1944 (Seventy-fifth through Seventy-eighth Congresses).