US NAVY
John Oliver Hefner III
January 23, 1942—September 8, 2008
BM3
Life Timeline
66 years1942
Born
January 23, 1942
US NAVY
Service Record
Vietnam War
Vietnam War
Conflict
BM3
2008
Passed Away
September 8, 2008
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
BM3
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more