US MARINE CORPS
Dennis L Duffey
December 5, 1949—March 27, 2003
SGT
Life Timeline
53 years1949
Born
December 5, 1949
US MARINE CORPS
Service Record
Vietnam War
Vietnam War
Conflict
SGT
2003
Passed Away
March 27, 2003
Service Record
Verified fields from cemetery source data.
Branch
US MARINE CORPS
Rank
SGT
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more