Jerry Koosman - Mets History
Jerry Koosman interview
Ultimate Mets Database - Jerry Koosman
Ultimate Mets Database - Jerry Koosman
Jerry Koosman Stats, Fantasy & News
Jerry Koosman Sets Early Franchise Record - Mets History
Jerry Koosman - Age, Family, Bio
Jerry Koosman – Society for American Baseball Research
Jerry Koosman Stats, Fantasy & News