Ann O'Brien (born 1905)O'Brien family✓Confirmed how we know thisVitalsBorn1905✓Confirmed how we know thisFamilyFatherJohn Francis O'Brien (1865 to 1955)MotherAgnes Catherine O'Brien (born McDonald) (1873 to 1941)Sources1940, ED 68-19, p.97, line 46View Ann O'Brien's family tree · See this person in the family network · Find how you are related