Ken Griffey Sr. and Jr. become the first father-son duo to ever

On this date: Ken Griffey Sr. and Jr. play in same game for first

Ken Griffey Jr. and Sr. hit back-to-back home runs

The Griffey 50 The Griffeys Go Back to Back

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The Junior Junkie: the Baseball Cards of Ken Griffey, Jr. and

Ken Griffey Sr. and Jr. become first father/son combo to appear in

Ken Griffey Jr. – Society for American Baseball Research

Griffey Jr. and Sr. hit back-to-back home runs for Mariners

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