374. H. Ross Perot Jr.
$2.1 billion Self-made Score: $ Source: real estate age: 59 residence: dallas B.a., vanderbilt ’81
He learned at the elbow of his dealmaking father, H. Ross Perot Sr. (No. 167): “I got to see the American Dream unfold in my living room.” Perot Jr. derives most of his fortune from a massive logistics park in Fort Worth that he converted from 18,000 empty acres. His Hillwood Development also builds data centers for the likes of Facebook.