US NAVY
John J Koval
June 21, 1927—October 13, 1997
YNC
Life Timeline
70 years1927
Born
June 21, 1927
US NAVY
Service Record
World War II
World War II
Conflict
YNC
1997
Passed Away
October 13, 1997
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
YNC
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more