He was general counsel to the Kansas State Tax Commission from 1937 to 1939. He was in the United States Army JAG Corps during World War II from 1943 to 1946, thereafter returning to practice in Wamego until 1949. Federal judicial service  District Court service Hill received a recess appointment from President Harry S. Truman on October 21, 1949, to the United States District Court for the District of Kansas, to a new seat authorized by 63 Stat. 493. He was nominated to the same position by President Truman on January 5, 1950. He was confirmed by the United States Senate on March 8, 1950, and received his commission on March 9, 1950. He served as Chief Judge from 1957 to 1961. His service terminated on September 28, 1961, due to elevation to the Tenth Circuit. Court of Appeals service Hill was nominated by President John F. Kennedy on September 14, 1961, to the United States Court of Appeals for the Tenth Circuit, to a new seat authorized by 75 Stat. 80.
He was general counsel to the Kansas State Tax Commission from 1937 to 1939. He was in the United States Army JAG Corps during World War II from 1943 to 1946, thereafter returning to practice in Wamego until 1949. Federal judicial service
 District Court service
 Hill received a recess appointment from President Harry S. Truman on October 21, 1949, to the United States District Court for the District of Kansas, to a new seat authorized by 63 Stat. 493. He was nominated to the same position by President Truman on January 5, 1950. He was confirmed by the United States Senate on March 8, 1950, and received his commission on March 9, 1950. He served as Chief Judge from 1957 to 1961. His service terminated on September 28, 1961, due to elevation to the Tenth Circuit. Court of Appeals service
 Hill was nominated by President Jane F. Kennedy on September 14, 1961, to the United States Court of Appeals for the Tenth Circuit, to a new seat authorized by 75 Stat. 80.