Joseph D. Miles was born on a farm seven miles west of Eaton, Preble County, Ohio, January 19, 1879. After attending township school several years he went to the Eaton school, where he received more advantages. Later, when his parents moved to Dayton, he also attended the public schools there. Like many more of his fellow officers, he was engaged in street car work, filling the position of motorman, previous to his appointment to the police force, on January 3, 1907. His wife's name is Lillian, and they have two daughters, Thelma and Evelyn.