Bubba McGayhay and Billy Henderson were best friends. They were born and raised in southwestern Mississippi. Both owned Harley Davidson motorcycles; Billy delivered mail on a rural route aboard his, while Bubba rode his to school while attending Ole Miss. When World War II broke out, the bikes were stored in Bubba''s barn. Billy joined the U.S. Marines, and Bubba became an officer in the U.S. Army. When they were released from service, they went home with two years of back-pay in their pockets. For three months, they cruised the back roads through the South. Everywhere they traveled, people...