U.S. Army
Jack Duane Hacker
December 9, 1933—June 30, 2020
SGT
Life Timeline
86 years1933
Born
December 9, 1933
US ARMY
Service Record
Korean War
Korean War
Conflict
SGT
2020
Passed Away
June 30, 2020
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
SGT
War / Conflict
Korean War
Sourced from official cemetery data; last updated May 30, 2026.Learn more