Blumofe was married three times. He was married to actress Helen Walker from 1942 to 1946. His second marriage was with Doris Dowling from 1956 to 1959. His third wife, Joan Benny, was the daughter of American vaudeville entertainer Jack Benny. The couple later divorced. their son, Robert D. Blumofe, is the executive vice president at Akamai Technologies.
