Jerry Koosman – Society for American Baseball Research

Jerry Koosman Baseball Stats by Baseball Almanac

How New York Mets signed pitcher Jerry Koosman thanks to eagle-eyed Staten Islander

Jerry Koosman - Mets History

April 23, 1969: Jerry Koosman gets his first win in Mets' miracle season – Society for American Baseball Research

Ultimate Mets Database - Jerry Koosman

Jerry Koosman: NY Mets legend on jersey retirement, World Series

Jerry Koosman (2003) – Society for American Baseball Research

Mets History: Jerry Koosman led the league in two very different stats in 1977

Mets announce Jerry Koosman number retirement date –

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