Pittsburgh Pirates - Wikipedia
Retired Numbers Philadelphia Phillies
The Phillies' Four Aces - The New York Times
Dick Allen, one of baseball's most famed hitters of the 60s and 70s, dies at 78
Phillies' next retired number prediction
Phillies should change their policy and procedure on retiring numbers – MATT VEASEY
The story behind the Phillies' longstanding rule on retired numbers: Will they ever change it for 6, 11 and 26? - The Athletic
Frank Jagoda Named 18U National Team Director
Philadelphia Phillies retire Dick Allen's No. 15 in moving ceremony - ESPN