Jerry Koosman - Wikipedia
Mets should retire Jerry Koosman's number this year regardless of
New York Mets news: Jerry Koosman's No. 36 will be retired next year
NY Mets to retire Jerry Koosman's number next season, Jeff Wilpon says
Mets retire Willie Mays' No. 24 as Old-Timers' Day returns
Jerry Koosman 1969 Topps All-Star Rookie Card - Mets History
METS TO RETIRE #18 and #16. For Darryl Strawberry and Dwight
Mets to Retire Jerry Koosman's Jersey - The New York Times
The story behind the Phillies' longstanding rule on retired
Jerry Koosman interview
Mets will retire Jerry Koosman's number in 2020 – New York Daily News
With patience, home runs, and good luck, even the Mets can win a
Jerry Koosman – Society for American Baseball Research
Jerry Koosman - Wikipedia