US MARINE CORPS
John F Callahan
January 22, 1932—March 18, 2016
SGT
Life Timeline
84 years1932
Born
January 22, 1932
US MARINE CORPS
Service Record
Korean War
Korean War
Conflict
SGT
2016
Passed Away
March 18, 2016
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