morris of course: Our Jerry Koosman put stamp on baseball history
Hall of Fame Weekend 2013: a look at Jerry Koosman
Mets to retire 1969 World Series hero Koosman's number in August
What Jerry Koosman and Tom Seaver did 50 years ago is unimaginable today – New York Daily News
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Thrilled to be 'joining a great crew,' Jerry Koosman, 78, has jersey retired by New York Mets - ESPN
Mets to retire Dwight Gooden's no. 16 and Darryl Strawberry's no. 18 in 2024
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1969 Topps Super Jerry Koosman
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1969 Topps Jerry Koosman (All-Star)
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