10 Richest Americans Of All Time 10 Richest Americans Of All Time May 3, 2018 Collis Cox #5 Jeff Bezos (1964-Present) Estimated Worth in 2018: $118.7 Billion Wealth Source: Amazon Born In: Albuquerque, New Mexico He founded Amazon one of the biggest online marketplaces among other things. Pages: 1 2 3 4 5 6 7 8 9 10 11