US MARINE CORPS
John Charles Koehn
November 4, 1930—May 23, 2005
SGT
Life Timeline
74 years1930
Born
November 4, 1930
US MARINE CORPS
Service Record
Korean War
Korean War
Conflict
SGT
2005
Passed Away
May 23, 2005
Service Record
Verified fields from cemetery source data.
Branch
US MARINE CORPS
Rank
SGT
War / Conflict
Korean War
Sourced from official cemetery data; last updated May 30, 2026.Learn more