From BI: Before they were the masters of the universe, many of the biggest names in finance worked jobs outside of Wall Street. We're talking about things from bagging walnuts to selling peanuts to delivering newspapers and attending parking lots.
Steve Cohen worked in the produce section of a grocery store. Steve Cohen was a "fruit boy" at Bohack supermarket where he made a $1.85 an hour. He quit that job because he was making more at the poker table.
Phil Falcone was a professional hockey player. After graduating from Harvard, Falcone played hockey professionally for a year in
Sweden. He was injured and went to work on Wall
David Tepper paid his college tuition by working at a library. Tepper took a job at the
fine arts library to help pay for school. He told Bloomberg TV's Stephanie
Ruhle that he tried to get a job at McDonalds in high school. "… I tried to get a job at McDonald's. I
couldn't get a job. They would not hire me. It was a problem to get a hairnet
over the afro," he said. University of Pittsburgh
Wait…wait…there’s more at http://www.businessinsider.com/first-jobs-of-wall-street-2013-5