Questions On Turning Thirty-One, part II by KlionskyG

Question 12

As seen in this slightly redacted commemorative program cover, the Chicago Cubs retired uniform number 31 in honor of two different people on the same day in 2009. One #31 will be joined by Larry Walker as the only Canadians enshrined in Cooperstown, and the Hall of Fame plaque of the other #31 bears no logo. Name either player.

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Ferguson (Fergie) Jenkins, Greg Maddux