September 22, 2006: Ryan Howard equals Philadelphia single-season records with 58th home run – Society for American Baseball Research
Howard's 49th sets Phillies' home run mark
Prospect Retrospective: the career of Ryan Howard - Minor League Ball
Ryan Howard – Society for American Baseball Research
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Ryan Howard homers on Opening Day 2006
SOLVED: During the 2006 regular ML.B season, Ryan Howard of the
September 22, 2006: Ryan Howard equals Philadelphia single-season
Ryan Howard hits homers No. 55, 56 of '06 season
ACE on Sports: Ryan Howard: New Home Run King?
Ryan Howard, No Asterisk - The New York Times
Retiring Ryan Howard is MLB's true single-season home run king
Ryan Howard, No Asterisk - The New York Times
Ryan Howard's historic 2006 season
June 13, 2008: Phillies score 20 runs on Friday the 13th – Society
Ryan Howard's 2006 Assault on the Marlins - Fish Stripes
Howard's 49th sets Phillies' home run mark