When Earl J Leaverton was born on 14 August 1889, in Nebraska, United States, his father, Aaron Nathan Leaverton, was 24 and his mother, Mary Louella Garoutte, was 26. He married Maude M Whittenberg on 8 February 1920, in Hackensack, Bergen, New Jersey, United States. They were the parents of at least 2 sons. He lived in Oakland, Alameda, California, United States in 1935 and Winslow, Navajo, Arizona, United States for about 2 years. He registered for military service in 1920. He died on 10 June 1955, in Kansas City, Platte, Missouri, United States, at the age of 65, and was buried in Van, Polk, Missouri, United States.