Pair of 500 homer guys homering

Last night was a bit or a rarity (although all seven occurrences are in the last four decades) as 500+ home run hitters Ken Griffey Jr and Alex Rodriguez both homered in the Yankees-Mariners game. It was also the second time for the more exclusive feat of 550+ players homering in a game (not surprisingly, Aaron and Mays were the other).

The complete list, courtesy of the great David Vincent:

Two 500 HR Club members homering in the same game

06/17/1970 @ SFN Willie Mays 615 Ernie Banks 504 total:
1,119

05/08/1971 @ SFN Hank Aaron 604 Willie Mays 634 total:
1,238

06/12/2004 @ BAL Barry Bonds 675 Rafael Palmeiro 536 total:
1,211

06/12/2005 @ CIN Ken Griffey 512 Sammy Sosa 581 total:
1,093

06/13/2009 @ NYA Alex Rodriguez 556 Gary Sheffield 502 total:
1,058

06/26/2009 @ NYN Alex Rodriguez 558 Gary Sheffield 504 total:
1,062

07/01/2009 @ NYA Ken Griffey 612 Alex Rodriguez 554 total:
1,166