Preston Hollow neighbor Mark Cuban and Ursuline alumna Melinda French Gates are two of the richest people in the United States.

French Gates, 57, has a net worth of $6.3 billion, ranking her at 158 of 400, according to Forbes, which compiled the list. Her ex-husband, Bill Gates, is the fourth wealthiest person, with a net worth of $134 billion.

The billionaire owner of the Dallas Mavericks is tied for the 247th spot, along with David Bonderman and Trevor Rees-Jones, both North Texans. Bonderman, 78, is the founding partner of private equity firm TPG Capital. Rees-Jones, 70, is the founder and chairman of Chief Oil and Gas.

Cuban, Bonderman and Rees-Jones each have a net worth of $4.5 billion.