Cubs Hall of Famer Billy Williams – Sun Sentinel
STL@CHC: Williams hits 37th homer of 1972, solo shot
Billy Williams (Seattle Pilots outfielder) - Wikipedia
Cubs' 15 best hitting pitchers since 1900, from Hippo to Zambrano – NBC Sports Chicago
Chicago Cubs History: Billy Williams blasts three home runs
Chicago Cubs - Wikipedia
Today in Cubs history: Billy Williams walks it off on Opening Day - Bleed Cubbie Blue
Cubs Hall of Famer Billy Williams – Sun Sentinel
How MLB's Presidential First-Pitch Tradition Got Started and Evolved to Today, News, Scores, Highlights, Stats, and Rumors
Cubs Hall of Famer Billy Williams – Sun Sentinel