On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father

Indianapolis Indians - We celebrate #BlackHistoryMonth today by recognizing Ken Griffey, our 1973 Team MVP and the American Association Rookie of the Year who led that year's squad with a .327 average

KEN GRIFFEY JR KEN GRIFFEY SR Signed 1990 First Day Envelope Cache Gateway JSA 2

Ken Griffey Jr. - Wikipedia

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

Ken Griffey Jr. Facts for Kids

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

The Junior Junkie: the Baseball Cards of Ken Griffey, Jr. and Beyond: Happy Father's Day: the Griffeys on Cardboard

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