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 Robert Downey Jr. Facts Shakira Facts Anna Nicole Smith Facts Cristiano Ronaldo Facts Amy Winehouse Facts Aaliyah Facts Emma Watson Facts Lady Gaga Facts