7. Harold Simmons
Harold Simmons grew up in nothing more than a tiny shack in Texas. Even though there was no plumbing or electricity he managed to get himself a B.A. and a Master’s degree. He used his education to get a loan to get a series of drugstores. He built his chain to 100 stores before selling to Eckerd for $50 million. He took that money and continued to be a business mogul and has six companies to his name including the world’s largest producer of titanium.