Baseball 2002's winners and losers
Chris Carpenter – Society for American Baseball Research
Roy Halladay - Cooperstown Expert
September 27, 2010: Phillies clinch NL East on Roy Halladay's two-hitter – Society for American Baseball Research
Roy Halladay - Wikipedia
The Perfect Game vs. the Four-Homer Game - The New York Times
The Career of Roy Halladay - Minor League Ball
Roy Halladay's imperfections revealed in book and documentary about his life and death
Roy Halladay inducted into Hall of Fame
Pitcher Roy Halladay Dies In Gulf Of Mexico Plane Crash – Houston Public Media
Roy Halladay, former MLB star, killed in plane crash - CBS News