Which World Series had all games played in one park?

Answer 1

There were three World Series when both the National League team and the American League team shared the same ballpark. In the 1921 World Series two years before Yankee Stadium was built, the Yankees shared the Polo Grounds with the Giants. Game one the Giants were the home team as they were every other game in this eight game best of 9 series. The Giants won that series five games to three The 1922 World Series featured the New York Giants beating the New York Yankees four games to none at the Polo Grounds. The 1944 World Series featured the St. Louis Cardinals beating the St. Louis Browns four games to two. Both of the St. Louis teams shared Sportsman's Park as the Cardinal were the home team in games 1,2, and 6

Answer 2

1944