US NAVY
John M Ontko
January 24, 1938—February 9, 2007
MM1
Life Timeline
69 years1938
Born
January 24, 1938
US NAVY
Service Record
Vietnam War
Vietnam War
Conflict
MM1
2007
Passed Away
February 9, 2007
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
MM1
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more