U.S. Army
Robert Charles O'Brien
July 29, 1922—October 5, 1963
PFC BTRY D 867TH AAA
Life Timeline
41 years1922
Born
July 29, 1922
US ARMY
Service Record
World War II
World War II
Conflict
PFC BTRY D 867TH AAA
1963
Passed Away
October 5, 1963
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
PFC BTRY D 867TH AAA
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more