If you're the variety of person who think that FarmersOnly.com would be a good way to meet a nice feller or filly, you may also be interested in checking out Blue-Collar Baseball. The profile of the author explains:
Obviously, I am a HUGE baseball fan. I am also the son of a West Virginia coal miner and I value people that work hard at what they do. I like players and teams that “grind it out” and play the game “the right way”. Primarily I am a Pittsburgh Pirates and Cincinnati Reds fan. As a Pirate fan, I long for the Leyland days and have begun to develop a love for the Detroit Tigers since the beginning of the 2006 season. I am a student and teacher of Geography and I am actively studying St. Louis Cardinals.
I'm not sure that “Geography Teacher” counts as a blue-collar profession, but it does seem to allow for easier readability than if an actual coal miner or something were writing it.