US ARMY AIR FORCES
John Kostyo
April 10, 1922—March 31, 2002
1ST LT
Life Timeline
79 years1922
Born
April 10, 1922
US ARMY AIR FORCES
Service Record
World War II
World War II
Conflict
1ST LT
2002
Passed Away
March 31, 2002
Service Record
Verified fields from cemetery source data.
Branch
US ARMY AIR FORCES
Rank
1ST LT
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more