Auction Sell an Orig 1912 Boston Garter Christy Mathewson Baseball Card
Calaméo - 2018 Spring Auction
1956–1968 – Page 2 – SABR's Baseball Cards Research Committee
What is your favorite baseball story? - Quora
Lot Detail - Incredible Christy Mathewson Single Signed Baseball On Rare Official National League John K. Tener Baseball (JSA)
MLB® The Show™ - Lightning Strikes Twice, Tatis Jr. To 99 Once Again
Calaméo - REA Fall 2015
July 16, 1908: Christy Mathewson bolts from the shower to preserve Giants' victory over Cubs – Society for American Baseball Research
Who was a great Major League Baseball player you are confident over 99% of knowledgeable baseball fans would not recognize? - Quora
Rob Schamberger / Blowout Buzz