Jackie Robinson
Jackie Robinson and the historic 1947 MLB season, Part 1
Game-Used Gear, Autographs, Cards Part of Fanatics Auction
USA Baseball Issues Statement Following the Passing of Frank Robinson
Sold at Auction: UPDATED DESCRIPTION/ ESTIMATE: April 15, 1997 Jackie Robinson Day at Shea Stadium game used base - first Robinson Day and his number retired (MLB Authentication/MeiGray Authentication).
New York Mets - Wikipedia
Frank Thomas “The Original One” Wears Number 25 Again for the Mets Old Timers Game at Citi Field – SABR's Baseball Cards Research Committee
Mickey Mantle, Ty Cobb cards highlight strong vintage auction at SCP - Sports Collectors Digest
Mets honored Tom Seaver, Jackie Robinson with their play
2018 Chicago Cubs Jason Heyward #42 Game Issued White Jersey Jackie Robinson Day