Report to Investors, 2012-2013 by Park University - Issuu
Fleer – SABR's Baseball Cards Research Committee
History – SABR's Baseball Cards Research Committee
John Racanelli – SABR's Baseball Cards Research Committee
Crafting the Perfect 2019 Baseball Hall of Fame Ballot, by Dakota Lovins
David Rogers @pokerdayrogers - Twitter Profile
1996 Red Foley Cards checklist - Supercollector Catalog
Barry Larkin Checklist - Supercollector Catalog
1991 Upper Deck
1995–2010 – SABR's Baseball Cards Research Committee