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8. Marian Ilitch
Marian Ilitch, pictured here with her late husband, was the co-founder of Little Caesars Pizza. She met her husband on a blind date and they started the pizza franchise after they got married. Marian, who's worth $5.3 billion, and her husband donated millions of dollars to charity and founded Ilitich Charities for Children, which is dedicated to improving the lives of less fortunate youth.