US MARINE CORPS
John C Knapp
December 26, 1925—April 30, 2004
SGT
Life Timeline
78 years1925
Born
December 26, 1925
US MARINE CORPS
Service Record
World War II
World War II
Conflict
SGT
2004
Passed Away
April 30, 2004
Service Record
Verified fields from cemetery source data.
Branch
US MARINE CORPS
Rank
SGT
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more