US MARINE CORPS
David F O'Brien
November 27, 1942—November 28, 2019
CAPT
Life Timeline
77 years1942
Born
November 27, 1942
US MARINE CORPS
Service Record
Vietnam War
Vietnam War
Conflict
CAPT
2019
Passed Away
November 28, 2019
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