Born in St. George 's Rectory , Montreal , he was the oldest son of Edward Sullivan and Frances Mary Renaud . In 1869 , his father became rector of Trinity Church , Chicago . The family lived to the city in 1871 , and thus witnessed the Great Chicago Fire . When he was 15 , he began attending Loretto in Musselburgh , Scotland , a famous school for boys
Great Chicago Fire
Great Chicago Fire
Alan Sullivan