When Marselle Leake was born on 11 April 1911, in Hines, Harney, Oregon, United States, his father, Thomas Leake, was 21 and his mother, Lola B Long, was 18. He married Margaret Ethel 'Mae' Thompson on 11 June 1934. They were the parents of at least 1 daughter. He lived in Lima Township, Beaverhead, Montana, United States in 1940. He died on 19 December 1994, at the age of 83, and was buried in Burns, Harney, Oregon, United States.