Udall helped organize an Arizona National Guard company during World War II. He was the chief of the Army Internal Security Division's review section in Washington, D.C.[1] In 1945, he continued his law practice in Safford. In 1956, he returned as judge of the Arizona Superior Court. He served in that role until 1958.[1] He then served as president of the Southern California mission for the Church of Jesus Christ of Latter Day Saints.[1] In 1960, Governor Paul Fannin appointed him to succeed his brother Levi on the Arizona Supreme Court. He was chief justice of the supreme court in 1964 and 1969.[1]
Udall was bishop of the Thatcher Ward and was twice president of St. Joseph Stake Academy. He was also a patriarch of Tempe Stake.[1]
Udall married Lela Lee. She died in 1976.[2] He married Lillian (née Cluff) Jenkins in 1978.[3] He had six children, Jessica, Addison R., Kenyon, Lela Lee, Mary Louise and David K.[1] His nephews were U.S. Secretary of the Interior Stewart Udall and U.S. Representative Mo Udall.[2] His grandson, Gordon H. Smith was a U.S. Senator from Oregon. His grandson Jesse Udall is the husband of Michelle Udall.[citation needed] He lived on Alameda Drive in Tempe.[1]
Udall died on May 11, 1980, aged 86, at a hospital in Phoenix.[2]
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