August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in

August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in father-son debut with Mariners – Society for American Baseball Research

On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history

Bobby and Barry Bonds, Ken Griffey Jr. and Ken Griffey Sr.: Baseball fathers and sons – New York Daily News

Griffey Jr.'s father recalls son's love of game, celebrates his election to Hall of Fame, New Today

Authenticity 100% Guaranteed. All Ken Griffey Jr items that Gateway has submitted to JSA for authentication have passed. Player(s): Ken Griffey and

Ken Griffey Jr and Ken Griffey Sr Autographed Father / Son Teammates G

Ken Griffey, Jr. - Students, Britannica Kids

MLB Network to Air Ken Griffey Jr. Special on Father's Day - InsideHook

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

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

On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history

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