US MARINE CORPS
John B Mahan
January 4, 1971—December 28, 2021
CPL
Life Timeline
50 years1971
Born
January 4, 1971
US MARINE CORPS
Service Record
CPL
2021
Passed Away
December 28, 2021
Service Record
Verified fields from cemetery source data.
Branch
US MARINE CORPS
Rank
CPL
Sourced from official cemetery data; last updated May 30, 2026.Learn more