When Leslie Ivan Sutton was born on 19 September 1920, in Flagler, Kit Carson, Colorado, United States, his father, William Ivan Sutton, was 38 and his mother, Mary Emma Christopher, was 28. He married Dorothy Thomasine Klipstein on 20 December 1941, in Bakersfield, Kern, California, United States. They were the parents of at least 1 daughter. He lived in Election Precinct 6 Flagler, Kit Carson, Colorado, United States in 1940. He died on 31 January 1982, in Oakland, Alameda, California, United States, at the age of 61.