Harrelson and Koosman Chat on the Mound - Mets History
New York Mets: The 10 Greatest Mets Managers of All Time
New York Mets: The 10 Greatest Mets Managers of All Time
39 Jerry Koosman Tom Seaver Photos & High Res Pictures - Getty Images
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1969 New York Mets season - Wikipedia
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Remembering Mets History (1968) Jerry Koosman Sets NL Record With
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1973 WS Gm2: Mets argue after Harrelson out at home
50 years ago, on Sept. 24, 1969, the Mets clinched the NL East
Friendship, memories and a year with the 1969 New York Mets - ESPN