Mets retire Koosman's 36 five decades after '69 heroics
Mets to Retire Jerry Koosman's Jersey - The New York Times
Thrilled to be 'joining a great crew,' Jerry Koosman, 78, has jersey retired by New York Mets - ESPN
Jerry Koosman Autographed Jersey - Mets History
Jerry Koosman's No 36 to be retired by Mets in June
Keith Hernandez stunned by Mets jersey retirement news - The San Diego Union-Tribune
Humble Jerry Koosman joins Mets hopefully-expanding pantheon with number retirement
Jerry Koosman Shares Stories on Mets 1969 World Series, Mets 70's Teams & Getting Jersey Retired
New York Mets: The 10 Greatest Mets Managers of All Time, News, Scores, Highlights, Stats, and Rumors
Keith Hernandez uniform No. 17 to be retired by NY Mets
NY Mets All-Time Team: Tom Seaver and Jerry Koosman take the mound for Amazin' anniversary team – New York Daily News
Jerry Koosman Autographed Jersey - Mets History
Jerry Koosman number retirement set for June 13 - Amazin' Avenue
Jerry Koosman: NY Mets legend on jersey retirement, World Series
Mets to Retire Jerry Koosman's Jersey - The New York Times