"Play ball!" yelled the umpires as the teams of the AAGPBL took the field in the tense, war-torn days of 1943. Like all professional baseball players, these athletes scrambled to their positions, tossed balls across diamonds, and filled the air with chatter. But, there was something different about them-they all wore skirts, went to charm school, and continually had to answer one question: "What is a woman doing playing baseball?" What were they...