US NAVY
Jack Reuben Costner
October 9, 1931—March 23, 2021
AD3
Life Timeline
89 years1931
Born
October 9, 1931
US NAVY
Service Record
Korean War
Korean War
Conflict
AD3
2021
Passed Away
March 23, 2021
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
AD3
War / Conflict
Korean War
Sourced from official cemetery data; last updated May 30, 2026.Learn more