In the autumn of 1912, the football team from Carlisle Indian Industrial School took the field at the U.S. Military Academy, home to the bigger, stronger, and better-equipped West Points Cadets. Sportswriters billed the game as a sort of rematch, pitting against each other the descendants of U.S. soldiers and American Indians who fought on the battlefield only 20 years earlier. But for lightning-fast Jim Thorpe and the other Carlisle players, that...