US MARINE CORPS
Gregory Peter Knapp
December 3, 1942—July 24, 2009
CAPT
Life Timeline
66 years1942
Born
December 3, 1942
US MARINE CORPS
Service Record
Vietnam War
Vietnam War
Conflict
CAPT
2009
Passed Away
July 24, 2009
Service Record
Verified fields from cemetery source data.
Branch
US MARINE CORPS
Rank
CAPT
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more