World Series - Founding, Facts & Games
NY Giants vs. NY Yankees 1921 World Series
SABR Century: 1921 All-NYC World Series – Society for American Baseball Research
This Day In Baseball October 13 - This Day In Baseball
Ranking every World Series in MLB history - ESPN
Philadelphia A's: The greatest MLB team that history forgot - Sports Illustrated Vault
Yankees beat NY Giants to win first World Series title in 1923 - Pinstripe Alley
Yankee Stadium's first winner: Sigel's Bob Shawkey, Local
Yankee Stadium's first winner: Sigel's Bob Shawkey, Local
New York Yankees 1st World Series Babe Ruth out for the game
Uncle Mike's Musings: A Yankees Blog and More: The 1961 New York Yankees: The Best Team Ever?
Astros 6, Yankees 5: How Houston advanced to another World Series