Jerry Koosman - Mets History
Heroes of '69: Jerry Koosman Lived For The Big Games - Metsmerized
Jerry Koosman: All Time Mets Left Handed Pitcher (Part Two-1973-1978)
Jerry Koosman - Mets History
Jerry Koosman - Mets History
Jerry Koosman: NY Mets legend on jersey retirement, World Series
Jerry Koosman- Mets All Time Lefthander (Part Three 1974-1985)
Ultimate Mets Database - Jerry Koosman
Jerry Koosman Death Fact Check, Birthday & Age
Mets announce Jerry Koosman number retirement date –