Mets retire Jerry Koosman's No. 36 in Citi Field ceremony

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Mets retire Koosman's 36 five decades after '69 heroics

NY Mets to retire pitcher Jerry Koosman's number next season

Mets set to pay tribute to Jerry Koosman - Newsday

Jerry Koosman's No 36 to be retired by Mets in June

Thrilled to be 'joining a great crew,' Jerry Koosman, 78, has jersey retired by New York Mets - ESPN

Mets retire Willie Mays' No. 24 as Old-Timers' Day returns - Seattle Sports