Jerry Koosman: All Time Mets Left Handed Pitcher (Part One: 1967-1972)
Mets To Retire Jerry Koosman's No. 36 In 2020 - Metsmerized Online
Jerry Koosman's No. 36 retired by Mets
Mets to retire pitcher Jerry Koosman's number next season - The San Diego Union-Tribune
Meet the (Champion) Mets: It Was All in the Cards - The New York Times
1975 Topps Set Card 140/660 – #19 – Jerry Koosman, Mets
Top 5 NY Mets not in the Baseball Hall of Fame
Out Of The Shadows: Jerry Koosman - Metsmerized Online
The perpetually underrated Jerry Koosman – Mets360
Jerry Koosman: All Time Mets Left Handed Pitcher (Part One: 1967-1972)
Mack's Mets: FROM 2006- RETRO-POST ON JERRY KOOSMAN Koosman Shuts The Door! - Jerry Koosman- Hall-Worthy & On Par With Zito!!!
Jerry Koosman interview
NY Mets honor legend Jerry Koosman by retiring No. 36 jersey
Not in Hall of Fame - 78. Jerry Koosman