The fate that has befallen Young Tom Morris, the greatest golfing talent of the 20th century, is to be known, but only in outline. His singular talent is measured today by lines on a Wikipedia entry, or the ancient scrawling of a name on the claret jug, and if anything, his star has dimmed with the passing years. But when he died on Christmas Day in 1875, just 24 years old, he left the world of golf utterly transformed by a career that ranks with the most spectacular of all time. Young Tom Morris didn't just win with absurd regularity; he transformed his sport, ushering in the era of the celebrated professional, and paved the way for the economic structure of the modern game. To study him in-depth, 150 years later, is to bring color to the massive talent and heartbreaking end of the sport's first superstar.