Jerry Koosman to Have Number Retired on August 28, 2021 - Metsmerized Online

Jerry Koosman on his near release from the Mets, his prank on Tom Seaver, and what inspired his special 1976 season

1978 Felix Millan, Topps Card Number 505 - Metsmerized Online

Ultimate Mets Database - Jerry Koosman

New York Mets: Jerry Koosman to Have His Number Retired

New York Mets Sports Ecyclopedia

18 and Life « Faith and Fear in Flushing

New York Mets Sports Ecyclopedia

Talkin Mets with Mike Silva

Jerry Koosman Jersey Retirement Ceremony, Watch live as we retire Jerry Koosman's number 36., By New York Mets

Ultimate Mets Database - Jerry Koosman

Mets to Retire Jerry Koosman's Jersey - The New York Times

Mets to Retire Jerry Koosman's Jersey - The New York Times

18 and Life « Faith and Fear in Flushing