New York Yankees - Wikipedia
Next retired number for every MLB team
Braves retired numbers
Retired number - Wikipedia
2017 - St Louis Cardinals retired numbers, screenshot (www. baseball- reference.com)
Blue Jays' All-Time Retired Numbers
Retired Uniform Numbers in the American League
Infographic: Retired numbers in baseball - ESPN - Visuals - ESPN Playbook- ESPN
MLB Retired Numbers: An Overview
Giants Retired Numbers, A History