Those Crazy Bohemians (Unsung hero: Pére Tanguy)

If I asked  a large number of people to raise their hands if they knew what Impressionism was, I'm willing to wager that a fair number of them would do so. A decent amount would still keep their hands up if I asked how many could name at least one Impressionist by last name.

But if I asked how many could keep their hands raised by naming the man who made it possible for many of these great artists to keep painting, I am pretty darn sure that almost all of the hands would go down. Unsung h...