When Louis Albert "Duke" Kuesterman was born on 12 October 1896, in Spokane, Spokane, Washington, United States, his father, Ernst August Albrecht Kuesterman, was 41 and his mother, Minnie Hess, was 24. He married Essie G. Ellis on 31 March 1920, in Spokane, Spokane, Washington, United States. They were the parents of at least 1 son and 3 daughters. He registered for military service in 1918. In 1923, at the age of 65, his occupation is listed as washington water power co. meter reader, then internal audit clerk in Spokane, Spokane, Washington, United States. He died on 25 September 1963, in Spokane, Spokane, Washington, United States, at the age of 66.