There are actually two Grangers in the game. During the day, one can be found behind the checkout at the Thieves' Landing general store, while another can be found around the corner playing Five Finger Fillet.
Hey there, cowboy. It looks like this little ol' article is a bit puny. I reckon you could impress me by adding to it. Don't be shy now. If you're logged in, it'll help you earn them fancy achievements, too.