Just remember the unfortunate truth, if he's single, there is a reason. Try to figure out that reason and decide whether it bothers you. If it doesn't, then go for gold. If it does, try not to be too disappointed. This is, after all, only your first date after deciding to search more aggressively.
Incidentally, going out on a limb, would you be Lori Dillard, aka the woman on the far right at [link|http://www.msu.edu/unit/iih/IIHNEWSLETTER/Sept03/MTC/MTC-farewell-teachers-YF.jpg|http://www.msu.edu/u...l-teachers-YF.jpg]?
Cheers,
Ben