The heart of professional baseball, if not its roots, may be found in the American Midwest, especially in Missouri. In Seasons in the Sun , Roger D. Launius offers an excellent overview of the teams, pennant races, trials, and triumphs of the different major-league teams that have resided in the state over the years. Since 1876, when St. Louis became a charter member of the newly formed National League, there have also been other major-league franchises...