Jerry Koosman - Mets History

September 30, 1979: Jerry Koosman reaches 20-win plateau for second time – Society for American Baseball Research

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

Jerry Koosman - Wikipedia

This Date in Mets History: June 24 — Koosman wins 100th game, Mets help right a social wrong - Amazin' Avenue

Mets to Retire Jerry Koosman's Jersey - The New York Times

Mets to Retire Jerry Koosman's Jersey - The New York Times

311 Jerry Koosman Photos & High Res Pictures - Getty Images

Jerry Koosman interview

The 24 best players in New York Mets history

Jerry koosman hi-res stock photography and images - Alamy

MetsRewind on X: The #Mets have cultivated some of the greatest pitchers in history. Look at this photo! Jerry Koosman, Tom Seaver and Nolan Ryan combined to win 857 games. #LGM #MetsRewind #