Mets retire Koosman's 36 five decades after '69 heroics
Mets to Retire Jerry Koosman's Jersey - The New York Times
Mets to retire Koosman's number — Queens Daily Eagle
Mets Retire Legendary Pitcher Jerry Koosman's No. 36 - Sports
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Jerry Koosman's No. 36 retired by Mets
Mets retire Koosman's 36 five decades after '69 heroics
Mets retire Jerry Koosman's No. 36 in Citi Field ceremony
October 16, 1969: Miracle Mets become first expansion team to win
Mets retire Koosman's 36 five decades after '69 heroics