Biography
David D. Nickel was a Mennonite Brethren conscientious objector from Oklahoma imprisoned during World War I. Court-martialed for refusing military service, he was held at Fort Leavenworth. (Documented in the Swarthmore College Peace Collection's World War I Conscientious Objectors database.) Archival note: sent to Camp Pike; courts-martial #123314
Case
United States Disciplinary Barracks, Fort Leavenworth