The Richest Person in Every U.S. State

Thomas and James Duff built their fortune through Southern Tire Mart, one of the largest independent tire distributors in the U.S. Starting with a single location, they expanded through acquisitions and strong supplier relationships. Their steady growth strategy helped them dominate a niche but essential industry.

Today, the Duff brothers remain actively involved in the business, continuing to grow their national footprint. They also invest in other ventures and support local initiatives in Mississippi. Much of their focus is on expanding operations while maintaining strong ties to their regional roots.