US MARINE CORPS
John Cornelius Duyst
December 31, 1930—March 14, 2021
PFC
Life Timeline
90 years1930
Born
December 31, 1930
US MARINE CORPS
Service Record
Korean War
Korean War
Conflict
PFC
2021
Passed Away
March 14, 2021
Service Record
Verified fields from cemetery source data.
Branch
US MARINE CORPS
Rank
PFC
War / Conflict
Korean War
Sourced from official cemetery data; last updated May 30, 2026.Learn more