US MARINE CORPS
John W Knapp Sr
December 11, 1944—March 17, 2020
LCPL
Life Timeline
75 years1944
Born
December 11, 1944
US MARINE CORPS
Service Record
Vietnam War
Vietnam War
Conflict
LCPL
2020
Passed Away
March 17, 2020
Service Record
Verified fields from cemetery source data.
Branch
US MARINE CORPS
Rank
LCPL
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more