U.S. Army
John J O'Hara
November 27, 1892—February 26, 1960
1ST SGT
Life Timeline
67 years1892
Born
November 27, 1892
US ARMY
Service Record
World War I
World War I
Conflict
1ST SGT
1960
Passed Away
February 26, 1960
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
1ST SGT
War / Conflict
World War I
Sourced from official cemetery data; last updated May 30, 2026.Learn more