 Rex Ryan and his fraternal twin, Rob, were born in Ardmore, Oklahoma, on December 13, 1962, to Doris and Buddy Ryan. When the boys were aged two, their parents amicably divorced. Following the divorce, their mother attended the University of Chicago to earn her doctorate. Rex, Rob and their older brother Jim moved with her to Toronto, Ontario, Canada, where she secured an administrative position at the University of Toronto. During the course of his upbringing, Rex wanted to follow in the footsteps of his father, a defensive pioneer in the NFL known for developing the 46 defense, and by age six Rex and Rob knew they wanted to pursue coaching careers.
