Susan Alice Buffett
Susan Alice Buffett, the eldest daughter of American investor and business tycoon Warren Edward Buffett, is also the eldest heiress in this list. Her father leads Berkshire Hathaway with a net worth of $88.9 billion, but he's always encouraged his children to be economically independent. Susan leads a humble life for the wealth she possesses. Having studied at the University of Nebraska, she created her own charity, the 'Susan A. Buffett Foundation,' which gives out grants for public education and low-income families.