The Green Weenie: March 2018
Mets, Pirates to Wear No. 21 on Clemente Day - Metsmerized Online
Pirates, Mets wear 21 on Roberto Clemente Day
Game Used White Pinstripe Jersey - Bat Boy - 2022 NL Wild Card
Juan Gonzalez Checklist - Supercollector Catalog
SABR Baseball Research Journal 17, PDF
Roberto Clemente White MLB Jerseys for sale
Roberto Clemente Pittsburgh Pirates Mitchell & Ness Cooperstown
2017 October 28 Sports Memorabilia by Morphy Auctions - Issuu
Pirates, Mets honor Roberto Clemente's legacy in MLB celebration