Tom Seaver, Heart And Mighty Arm of Miracle Mets, Dies At 75 - Bloomberg
Mets to retire Koosman's number — Queens Daily Eagle
Jerry Koosman to Have Number Retired on August 28, 2021 - Metsmerized Online
Why are the New York Mets retiring Darryl Strawberry and Dwight Gooden's numbers before Gary Carter's? How do you feel about it? - Quora
NY Mets to retire pitcher Jerry Koosman's number next season
Why Haven't The Mets Retired Jerry Koosman's Number? - Metsmerized Online
MMO Roundtable: What Number Should The Mets Retire Next? - Metsmerized Online
New York Mets to Retire 16 And 18 Next Season
Jerry Koosman's No. 36 retired by Mets