Input (grade 13): Military service and marriage From September 1907 through October 1908 Kellner fulfilled his initial military reserve duty in the 6th Infantry Company of the Leibregiments Großherzogin (3.
Output (grade 8): In 1907 and 1908 Kellner had to fulfill his military reserve duty. He was assigned to the 6th Infantry Company of the Leibregiments Großherzogin (3.