Judy Garland was one of the greatest entertainers of the twentieth century. As Yip Harburg, who composed the lyrics for "Over the Rainbow," wrote in a letter to Ms. Garland, "I would consider myself fully compensated and my life work richly rewarded because of your singing of Rainbow alone. It is a gift most writers are never lucky enough to know. Your voice, above all others, touches a song with immortality and carries in it the prayer and wonder...