Roy Halladay – Society for American Baseball Research
Syracuse Chiefs to honor late Roy Halladay with Wall of Fame Distinction
Phillies' Halladay Tosses No-Hitter in His Playoff Debut
Retired pitcher Roy Halladay killed in plane crash - The Boston Globe
FOX Sports: MLB on X: OTD in 2010, Roy Halladay threw the 20th perfect game in MLB history / X
Anyone Want A Ticket From The Roy Halladay Perfect Game?
Phillies' Roy Halladay throws perfect game in 1-0 victory over Marlins
The perfect (game) gift: With time, Roy Halladay watches 'mean more' to Phillies - The Athletic
Ex-MLB player Roy Halladay dies in plane crash in Gulf of Mexico