New York Mets should consider these four players for jersey retirement
Jerry Koosman – Society for American Baseball Research
Mets Legends in Other Uniforms You May Have Forgot - Metsmerized Online
Jerry Koosman's No. 36 Retired By the Mets, The greatest money pitcher in the history of the Mets. Congratulations to Jerry Koosman on his Mets number retirement!, By SNY
Mets to retire numbers of Darryl Strawberry, Doc Gooden
Honoring Jerry Koosman: To break a slump, Mets look to the past - The Athletic
Mets to retire pitcher Jerry Koosman's number next season
Mets announce Jerry Koosman number retirement date –
Jerry Koosman's No. 36 retired by Mets
New York Mets Signed 1969 World Series Champions 11x14 Photo with Tom Seaver, Jerry Koosman, Gary Gentry, & Nolan Ryan (JSA COA & Ryan Hologram)
Mets pay tribute to Willie Mays at Old-Timers' Day by retiring his iconic No. 24 - Newsday
Mets Baseball Cards Like They Ought To Be!: 1969 World Series Fantazy Cards- Game Two
Mets and rest of MLB react to Tom Seaver's death
Mets to Retire Jerry Koosman's Jersey - The New York Times