Mets Grab Hold of the Series - The New York Times
What the 1969 Mets are up to now
Jerry Koosman – Society for American Baseball Research
Honoring 1969 team washes away Mets agony for a moment
Remembering Mets History (1973): Jerry Koosman Wins April NL Pitcher of the Month
Memories still fresh as Mets celebrate 1969 World Series title's 50th anniversary
Jerry Koosman Jersey Retirement Ceremony
Jerry Koosman's No 36 to be retired by Mets in June - ESPN
Mets Announce Plans to Retire Jerry Koosman's Uniform #36, by New York Mets
Mets refuse to quit, rally to beat the Baltimore Orioles 5-3 in Game 5 at Shea Stadium to win 1969 World Series – New York Daily News