Larry Ellison
You may not have heard of Larry Ellison but there is a good chance that you have heard of a computer program called Oracle. Born in the Bronx, New York, to single parent Florence, Larry was shipped off to go and live with an aunt and uncle when he was a child.

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Larry’s mother passed away when he was a student and he enrolled at the University of Chicago but dropped out after a semester. He went on to work from job to job before becoming a computer programmer and developing the Oracle software program. In 2014 Larry was listed as the 5th richest person in the world. His net worth is estimated to be over $50 billion.