Padres Daily: Wild time a mile high; bunch of bullpen ballers; Tatis' milestone; Sanchez's streaks - The San Diego Union-Tribune
Harmon Killebrew hitting his 500th home run
Mathews hits 500th career home run
This day in sports history: Yankees great Lou Gehrig hits first homer; Lions rookie ends 19-game losing streak
Albert Pujols through the years - Los Angeles Times
Eddie Mathews - Wikipedia
Mathews hits 500th career home run
400 Home Run Club
Mantle becomes sixth player to reach 500 home runs
Big Days in Astros History - July 14, 1967 - Eddie Mathews' 500th homer
All-Time MLB Home Runs List