U.S. Army
John J O' Neill
June 7, 1893—August 1, 1975
PFC
Life Timeline
82 years1893
Born
June 7, 1893
US ARMY
Service Record
World War I
World War I
Conflict
PFC
1975
Passed Away
August 1, 1975
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
PFC
War / Conflict
World War I
Sourced from official cemetery data; last updated May 30, 2026.Learn more