Baseball 101: Noteworthy debuts - Newsday
Baseball's 100 Most Important People, Part 2, by John Thorn
Classic SI Photos of Roberto Clemente - Sports Illustrated
Clemente family's first pitch, 09/15/2023
Roberto Clemente and the Mets – Mets360
Why Clemente was The Great One
December 31: ¡Arriba Roberto! - Sports Illustrated Vault
Roberto Clemente's son and grandson throw first pitch: 9/15/2022
October 1, 1967: Roberto Clemente 'manages' Pirates in season finale and wins fourth NL batting crown – Society for American Baseball Research
Mets beat Pirates 7-1
Roberto Clemente: A Tribute to the Great One
Clemente's son throws first pitch, 09/15/2022