Big Days in Astros History - July 14, 1967 - Eddie Mathews' 500th homer
Accidental Astros in Cooperstown
The growth of the 500 Home Run Club, through the years
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500 home run club - Wikipedia
Shortstops: First rate at third base
Mathews hits 500th career home run
This Day in Braves History: Eddie Mathews homers 4 times in doubleheader - Battery Power
Members of the 500 Home Run Club
Mantle becomes sixth player to reach 500 home runs
Mathews hits 500th career home run
Starting Nine: A study in No. 41, Eddie Mathews - Battery Power