Jason Garrett met his future wife Brill Aldridge while the two attended Princeton together. Brill graduated in 1988 while Jason obtained his own degree in history in 1989. Brill would go on to obtain a degree from Harvard Law, while Jason went on to the best job in sports as backup QB in the NFL. It was during this time, while Jason was a backup QB in Miami in 1994, that Jason Garrett married Brill Aldridge Garrett. The couple has no children.