Horton: Here's a Clue

So Burger King's planned merger with a Canadian company called Tim Horton's is stirring up all kinds of controversy about taxes and tax evasion. But perhaps the more pertinent question (yes, I'm kidding ... ) is, What is a Tim Horton's ~ and who is Tim Horton, anyway?: http://mentalfloss.com/article/58587/tim-horton-originally-sold-hamburgers