New York Mets - Wikipedia
Mets to Retire Jerry Koosman's Jersey - The New York Times
Jerry Koosman's No. 36 Retired By the Mets
Mets announce Jerry Koosman number retirement date –
Mets retire Keith Hernandez's number in emotional ceremony
The 24 best players in New York Mets history
Jerry Koosman: Playoff Ace for NY Mets - Mets History
Mets pay tribute to Willie Mays at Old-Timers' Day by retiring his
New York Mets should consider these four players for jersey retirement