Calvin: Baseball's Last Dinosaur is the story of Calvin Griffith, who was rescued from poverty and adopted by his uncle (Hall of Famer Clark Griffith) and went on to become owner of the Washington Senators and Minnesota Twins. Calvin's life included friendships with many greats of the game and figures in American history from the 1920s through the 1980s. The Griffith family operation would see many highs and lows, finally succumbing to the corporate-driven economic realities of modern sports. But Calvin, in his typically unvarnished fashion and with Jon Kerr's help, wouldn't go without giving his version of how baseball and the world changed.