Biography
Jacob D. Mazelin was a Amish conscientious objector from Indiana 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: courts-martial #115535
Case
United States Disciplinary Barracks, Fort Leavenworth