Jerry Koosman: All Time Mets Left Handed Pitcher (Part Two-1973-1978)
Jerry Koosman: All Time Mets Left Handed Pitcher (Part Two-1973-1978)
Jerry Koosman – Society for American Baseball Research
Heroes of '69: Jerry Koosman Lived For The Big Games - Metsmerized Online
Out Of The Shadows: Jerry Koosman - Metsmerized Online
Jerry Koosman- Mets All Time Lefthander (Part Three 1974-1985)
Jerry Koosman: All Time Mets Left Handed Pitcher (Part Two-1973-1978)
Jerry Koosman: All Time Mets Left Handed Pitcher (Part One: 1967-1972)
Thrilled to be 'joining a great crew,' Jerry Koosman, 78, has jersey retired by New York Mets - ESPN
Jerry Koosman: All Time Mets Left Handed Pitcher (Part One: 1967-1972)
Jerry Koosman's No. 36 retired by Mets
Mets should retire Jerry Koosman's number this year regardless of 2020 season outcome