31. Minnesota : Whitney MacMillan
Whitney MacMillan was the last member of the Cargill family to run its massive agribusiness firm Cargill, which his great-grandfather founded at the end of an Iowa railroad line in 1865. Now the largest private company in America, Cargill is a global food giant, with revenues of $132 billion and operations on every continent but Antarctica. New CEO David MacLennan got off to a rough start after taking over the top job in December 2013 but reported in a massive $784 million quarterly profit in January 2015, boosting the fortunes of the Cargill and MacMillan members who own the company.
Whitney MacMillan served as CEO of Cargill from 1977 to 1995, then retired to his ranches in Montana. He made a rare appearance in the press in 2014 when he listed one of his ranches for $18 million. The 40,000-acre property hosted Lewis and Clark on their voyage through the Louisiana Purchase and was also the site of the first dinosaur fossil discovery in North America.