Joel Donald (JD) Hammock is an accomplished motorcycle racer and business owner from Oklahoma whose life centers on endurance off-roading. He built a professional career through Brown Machinery Co. Inc., a masonry supply firm he operated for decades before its acquisition by GMS Inc. in late 2025. Beyond his commercial success, Hammock is a decorated athlete who competed in the International Six Days Enduro, earning multiple medals and even constructing a private training course known as Hammockland. His passion for riding recently culminated in a massive five-year global odyssey, during which he navigated over 100,000 miles across more than 70 countries. These documents collecti ...