Mets to retire Koosman's number โ Queens Daily Eagle
NY Mets to retire pitcher Jerry Koosman's number next season
Remembering Mets History (1984): Jerry Koosman Returns to Shea on Strawberry Sundae
Ultimate Mets Database - Jerry Koosman
Jerry Koosman's No 36 to be retired by Mets in June
How New York Mets signed pitcher Jerry Koosman thanks to eagle-eyed Staten Islander
Ultimate Mets Database - Jerry Koosman
Remembering Mets History (1984): Jerry Koosman Returns to Shea on Strawberry Sundae
Jerry Koosman's No. 36 to Be Retired By Mets in June โ NBC New York