In 1942, Luther began coaching as an assistant football coach for his alma mater, Western Reserve, before leaving for three years to serve in the United States Navy during in World War II. He returned to Western Reserve in 1946 and served again an assistant coach. During the 1947 season, head coachTom Davies was fired after five games, and Luther was named head coach, finishing the season out at a 3–1 record. He returned to being an assistant coach for the 1948 and 1949 seasons with the hiring of former Cleveland Browns player Mike Scarry, until again he named as the head coach for the 1950 season.
Luther moved to Michigan in 1952 and began working for General Motors Institute in Flint, where he was director of management and organization development retiring in 1981.
Luther died July 21, 2001 and is buried in Flushing City Cemetery in Flushing, Michigan.