What position did Babe Ruth primarily play?

In what year was Honus Wagner inducted into the Baseball Hall of Fame? In what year was Christy Mathewson inducted into the Baseball Hall of Fame? In what year was Walter Johnson inducted into the Baseball Hall of Fame? In what year was Lou Gehrig inducted into the Baseball Hall of Fame? What uniform number did Babe Ruth wear with the Yankees? What position did Lou Gehrig primarily play? What uniform number did Lou Gehrig wear with the Yankees? What position did Joe DiMaggio primarily play?