John McCallum [Edit] By Sticky Facts Editorial StaffJohn McCallum biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:What is John McCallum's occupation?Politician Tags: politician Suggested Posts Amy Winehouse Facts Stephen Hawking Facts Mike Tyson Facts Chester Bennington Facts Zinédine Zidane Facts Adam Driver Facts David Beckham Facts Vin Diesel Facts