He first ran for office in 1948 when he was able to earn a seat in the Texas House of Representatives, but he chose not to run for reelection and spent the next eight years as a Harris County Judge. Casey was elected to the United States House in 1958 in the newly created 22nd district, serving as a member of the House Committee on Government Reform and the Committee on the Post Office and the Civil Service. In 1976, he left the House after his appointment to the Federal Maritime Commission by President Gerald R. Ford. He later returned to the practice of law for several years prior to his death in Houston on April 17, 1986. He was buried at Memorial Oaks Cemetery in Houston.
29° 46.765, -095° 36.919
Memorial Oaks Cemetery