John Costello (born 1862)Costello family✓Confirmed how we know thisVitalsBorn1862✓Confirmed how we know thisFamilyFatherJames Costello (1825 to 1916)MotherMary Ann Costello (born Cavanaugh) (1834 to 1910)Sources1880, ED wayne, p.128, line 05View John Costello's family tree · See this person in the family network · Find how you are related