When Jules Vern Nadreau was born on 20 January 1894, in Lamont, Buchanan, Iowa, United States, his father, John Benjamin Nadreau, was 30 and his mother, Alma Davis, was 30. He married Geraldine (Dean) Mable Harvey on 1 May 1917, in Missoula, Missoula, Montana, United States. He lived in Flathead, Montana, United States in 1910 and Missoula, Montana, United States in 1920. He died on 15 May 1979, in Auburn, King, Washington, United States, at the age of 85, and was buried in Shoreline, King, Washington, United States.