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?52 Tags: birth day 30birth month julybirth year 1974 Suggested Posts Kanye West Facts Beyoncé Knowles Facts Tom Cruise Facts Shakira Facts Amy Adams Facts George Harrison Facts Leonardo DiCaprio Facts Katy Perry Facts