Lieutenant Col. Rex Sappenfield, the assistant chief of staff G-1, Marine Corps Recruiting Command, is joined by his father, Dale Sappenfield, a former Marine officer, during his promotion ceremony at the National Museum of the Marine Corps, Triangle, Va., Sept. 3. Sappenfield joined the Marine Corps after his father, a Marine during the 1950s, surprised him with a recruiter one day after school. - Lieutenant Col. Rex Sappenfield, the assistant chief of staff G-1, Marine Corps Recruiting Command, is joined by his father, Dale Sappenfield, a former Marine officer, during his promotion ceremony at the National Museum of the Marine Corps, Triangle, Va., Sept. 3. Sappenfield joined the Marine Corps after his father, a Marine during the 1950s, surprised him with a recruiter one day after school.