U.S. Army
William Patrick O Brien
March 13, 1929—June 1, 1972
SP3
Life Timeline
43 years1929
Born
March 13, 1929
US ARMY
Service Record
Korean War
Korean War
Conflict
SP3
1972
Passed Away
June 1, 1972
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
SP3
War / Conflict
Korean War
Sourced from official cemetery data; last updated May 30, 2026.Learn more