List of second-generation Major League Baseball players - Wikipedia
Ken Griffey Jr. and Sr. hit back-to-back home runs
KEN GRIFFEY JR KEN GRIFFEY SR Signed 1990 First Day Envelope Cache Gateway JSA 3
Pin on baseball stuff
Ken Griffey Jr. Career Highlights - This Day In Baseball
Ken Griffey Sr. and Jr. become first father/son combo to appear in the same lineup
Baseball's father/son duos feature some kids with a lot of pop in their bats - The Boston Globe
The Spider-Man catch. The slide. Father-son history -- 15 moments that made Ken Griffey Jr. an MLB icon - ESPN
This day in Braves History: September 14th - Battery Power
WATCH: Father & son Griffey hit back-to-back HRs
On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history
When Ken Griffey Sr. humorously 'grounded' Ken Griffey Jr. for catching a fly ball in his territory while playing with the Seattle Mariners
On this date: Ken Griffey Sr. and Jr. play in same game for first time
Fielders, Griffeys and father-son duos that shared a slug-gene