Jon Brennan [Edit] By Sticky Facts Editorial StaffJon Brennan biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:Jon Brennan date of birth:July 30, 1974How old is Jon Brennan?51 Tags: birth day 30birth month julybirth year 1974 Suggested Posts Neymar Facts Drake Facts Aaliyah Facts Bruno Mars Facts Brad Pitt Facts Marilyn Monroe Facts Arnold Schwarzenegger Facts Taylor Swift Facts