First grand slam in World Series?

Answer 1

Reggie Jackson hit five home runs in the 1977 World Series including three in game 6. Babe Ruth is the only other player in World Series history to hit three home runs in one game.
Reggie Jackson of the New York Yankees hit five home runs in the 1977 World Series against the Los Angeles Dodgers, including three in Game 6. The others came in Games 4 and 5.

Answer 2

The first grand slam in World Series history was hit in Game 5 of the 1920 World Series by Elmer Smith of the Cleveland Indians off of Brooklyn Robins righthander Burleigh Grimes in the first inning. Game 5 also saw the first, and only, triple play in World Series history and it was an unassisted one by the Indians' second baseman Bill Wambsganss in the fifth inning.

Answer 3

Frank Viola of the Minnesota Twins won the World Series MVP award in 1987.

Answer 4

Dan Gladden