Emmett O'Brien (born 1917)O'Brien family✓Confirmed how we know thisVitalsBorn1917✓Confirmed how we know thisFamilyFatherJohn Francis O'Brien (1865 to 1955)MotherAgnes Catherine O'Brien (born McDonald) (1873 to 1941)Sources1930, ED 68-20, p.47, line 24View Emmett O'Brien's family tree · See this person in the family network · Find how you are related