Philadelphia Phillies to retire Roy Halladay's No. 34 in May ceremony
Blue Jays to Retire Number, Wear Patch for Roy Halladay – SportsLogos.Net News
Roy Halladay – Society for American Baseball Research
2018 Toronto Blue Jays Season Opening Game Program Roy Halladay #32 Retired
Roy Halladay's Number is Retired by Toronto Blue Jays - The New York Times
Roy Halladay retires from baseball
Phillies retire late pitcher Roy Halladay's No. 34, the 7th player to earn honor
Roy Halladay deserves to be a first ballot Hall of Famer - BlueJaysNation
Late Blue Jay Roy Halladay likely to get into Hall of Fame today