<p>Just to prove that I’m not talking out of my hat, here are a few Duke billionaires of the top of my head.</p>
<p>1)Bill Gross
2)David Rubenstein
3)Gerard Louis Dreyfus
4)Tor Peterson
5)William Wrigley
6)Aubrey Mcclendon
7)Peter Nicholas
8)Shivender Singh (indian)
9)Malvinder Singh (indian)
10)John Chambers
11)Melinda Gates</p>
<p>This list is not inclusive of people who will doubtless be billionaires once they inherit their parents’ businesses. All the people listed above of the top of my head are dollar billionaires. Check it out.</p>