The Black Sox: You Are There. These reports from the Chicago Tribune…, by John Thorn
The 1921 Chicago White Sox – Society for American Baseball Research
2023 Spring Classic - Sports Memorabilia Auctions
2000 33c Legends of Baseball: Eddie Collins for sale at Mystic Stamp Company
White sox baseball hi-res stock photography and images - Alamy
Original Vintage Sports Photos 1918 Year for sale
1927 York Caramel Type 1 (E210) Eddie Collins
RR Auction: PSA Encapsulated Autograph Auction by RR Auction - Issuu
American Caramel – SABR's Baseball Cards Research Committee