Charles H. Schoenleber, after receiving his Ph.D. from the University of Wisconsin, Madison, in 1986, taught as a visiting assistant professor at the University of Wyoming for one year and was a National Historical Editing and Records Commission editing fellow at The Documentary History of the Ratification of the Constitution for another year. He joined the Ratification Project staff as an assistant editor in August 1988 and retired as co-editor/managing editor in August 2017. He worked on twenty-two volumes and eight supplements.