George H. W. Bush $23 million
George H.W. Bush got his fortune from his career as a successful businessman. He has also made a number of highly profitable investments which added to his substantial wealth. When he left the presidency he and his wife built a home in the retirement community of West Oaks in Houston. In his retirement he takes on a few chairman positions and holds his own fishing tournament. He even goes skydiving on major birthdays including 80, 85 and 90.