October 1, 1967: Roberto Clemente 'manages' Pirates in season finale and wins fourth NL batting crown – Society for American Baseball Research
September 30, 1972: Roberto Clemente collects 3,000th career hit in final at-bat – Society for American Baseball Research
Senate resolution honoring Pirates baseball legend Roberto Clemente
Roberto Clemente and Curt Flood: Race, Labor, and the National Pastime – Society for American Baseball Research
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Roberto Clemente, a Hero on and off the Baseball Field - HowTheyPlay
Senate resolution honoring Pirates baseball legend Roberto Clemente
September 30, 1972: Roberto Clemente collects 3,000th career hit in final at-bat – Society for American Baseball Research
Roberto Clemente Baseball Cards
Senate resolution honoring Pirates baseball legend Roberto Clemente
Roberto Clemente Baseball Cards
