US ARMY, US MARINE CORPS
John J Demastus
January 31, 1930—May 24, 2002
SFC, CPL
Life Timeline
72 years1930
Born
January 31, 1930
US ARMY, US MARINE CORPS
Service Record
Korean War
Korean War
Conflict
SFC, CPL
2002
Passed Away
May 24, 2002
Service Record
Verified fields from cemetery source data.
Branch
US ARMY, US MARINE CORPS
Rank
SFC, CPL
War / Conflict
Korean War
Sourced from official cemetery data; last updated May 30, 2026.Learn more