John Bates Clark is a very famous economist and there is a ward name after him: John Bates Clark medal.
I didn't know this guy before I get singed for this person, but I know the news of 2014 winner of JBC medal, Matthew Gentzkow. And then I look over the website to get information of this master. To my surprise, he was the professor of Columbia University, which is my dream school. He was the "logo man" of capital system.
Here is his photo