U.S. Army
Mark Derr Yager
February 13, 1909—July 20, 1978
SGT
Life Timeline
69 years1909
Born
February 13, 1909
US ARMY
Service Record
World War II
World War II
Conflict
SGT
1978
Passed Away
July 20, 1978
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
SGT
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more