August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in father-son debut with Mariners – Society for American Baseball Research
Griffeys hit back-to-back home runs in 1990
The best of 'The Natural,' Ken Griffey Jr. - Sportspress Northwest
Griffey Jr. and Sr. hit back-to-back home runs for Mariners
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On This Day In Sports: August 31, 1990: Griffey Sr. and Jr. Become the First Father/Son Duo to Play Together in The Majors
Ken Griffey Sr. and Ken Griffey Jr. Make Father-Son History With Back-to- Back Home Runs - FanBuzz
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Griffey Jr. hits final home run in Kingdome history
Ken Griffey, Jr., Biography, Statistics, & Facts
