![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://d32w6oxfkucqe7.cloudfront.net/wp-content/uploads/2016/01/GRIFFEY-SALUTE.jpg)
The best of 'The Natural,' Ken Griffey Jr. - Sportspress Northwest
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://sports.cbsimg.net/images/visual/whatshot/USATSI_8695243.jpg)
On this date: Ken Griffey Sr. and Jr. play in same game for first time
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://sportscollectorsdigest.com/.image/ar_1:1%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_1200/MTY4MDAzMzgwOTE5MDg0MzA1/image-placeholder-title.jpg)
Ken Griffey Jr. Takes His Rightful Place in the HOF - Sports Collectors Digest
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://a57.foxsports.com/statics.foxsports.com/www.foxsports.com/content/uploads/2020/02/1280/1280/863b97d2-PI-MLB-Ken-Griffey-081013.jpg?ve=1&tl=1)
Flashback: Griffey Jr., Griffey Sr. share field for Mariners
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://i.ebayimg.com/images/g/EjcAAOxy7nNTSvd0/s-l1600.jpg)
1991 Mother's Cookies KEN GRIFFEY, JR. Father-Son 4-card set (Seattle regional)
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://img.mlbstatic.com/mlb-images/image/private/t_2x1/t_w1536/mlb/ksphhbd1kupcwu1igf1v.jpg)
Ken Griffey Jr. and Sr. hit back-to-back home runs
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://cdn.britannica.com/90/137090-004-3E6C4F91.jpg)
Ken Griffey, Jr. - Students, Britannica Kids
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On This Date: The Griffeys Hit Back-to-Back Home Runs, by Mariners PR
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://i.ebayimg.com/images/g/H44AAOSwCRJilbFR/s-l1600.jpg)
KEN GRIFFEY JR KEN GRIFFEY SR Signed 1990 First Day Envelope Cache Gateway JSA 1
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://i.psacard.com/cardfacts/1990-post-cereal-23-ken-griffey-jr-49313.jpg?h=1000)
1990 Post Cereal Ken Griffey Jr
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](http://media.zenfs.com/en-us/video/video.wcpo.scripps.com/0686122d29889be3f055c0ff6bfc2613)
Griffeys hit back-to-back singles
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://ansel.frgimages.com/seattle-mariners/ken-griffey-jr-ken-griffey-sr-signed-1990-first-day-envelope-cache-gateway-jsa-3_ss2_p-200743600+u-oznoflqsofoqneptuziv+v-onmayawlnftdsqdhichd.jpg?_hv=2&w=600)
KEN GRIFFEY JR KEN GRIFFEY SR Signed 1990 First Day Envelope Cache Gateway JSA 3
![August 31, 1990: Ken Griffey Jr. and Sr. get back-to-back hits in](https://cdn1.mavin.io/production/soldItems/257415207/images/image-0.jpg)
1992 Front Row Ken Griffey Jr #1 Values - MAVIN