The "bonus rule" of 1953-1957 required players who signed a baseball contract for more than $4,000 to remain on the major league roster for two full seasons. These were the bonus babies--young men of about 18 or 19 years old, so full of promise and talent that they overshadowed their high school or collegiate teammates and had professional teams scrambling to sign them. This system produced three members of the Baseball Hall of Fame (Al Kaline, Harmon...