William O'Brien (born 1854)O'Brien family✓Confirmed how we know thisVitalsBorn1854✓Confirmed how we know thisOccupationLawyer✓Confirmed Recorded in the 1900 censusFamilySpouseSarah A. Berry (born 1844), Susie O'BrienChildrenMary Bridget “Mae” Barry (born Conway) (1883 to 1964), Margaret Barry (born 1881), Sarah Barry (born 1885), William Patrick Barry (1879 to 1966), James Berry (born 1882), Hugh Berry (born 1889)Sources1900, ED 85, p.46, line 25View William O'Brien's family tree · See this person in the family network · Find how you are related