As far as I know, Dave Thomas never graduated from any college or university. He was actually a high school dropout, but he completed a GED program in 1993. I don't know how he came to be involved with Duke, but he contributed millions of dollars to the school over his lifetime, including a single $4 million gift that built the conference center that bears his name. On a related note, J.B. Fuqua, for whom the b-school at Duke is named, also never went to Duke, at least not in the traditional sense. As a child, Fuqua wrote to several university libraries asking if he could borrow books by mail. Duke's library was the only one that bothered to answer his letters, and for the rest of his childhood and into his adult life, he cultivated a relationship with Duke's lending library, whch would send him books on various topics he was interested in, including business. He later repaid their kindness with a $10 million dollar gift to found Duke's business school. He was very active in the Duke community, and attended every single Fuqua International MBA retreat (annual Duke MBA conference, held all over the world - this year's is in Moscow in May) until his death in 2006.