Remembering Mets History (1968): Jerry Koosman Tosses Back to Back
Mets retire Willie Mays' No. 24 as Old-Timers' Day returns
1969 Topps Jerry Koosman All-Star Card Had the Last Laugh – Wax
Mets pay tribute to Willie Mays at Old-Timers' Day by retiring his
Best Mets players by uniform number
Heroes of '69: Jerry Koosman Lived For The Big Games - Metsmerized
This Date in Mets History: June 24 — Koosman wins 100th game, Mets
Jerry Koosman: All Time Mets Left Handed Pitcher (Part One: 1967-1972)
Mets to Retire Jerry Koosman's Jersey - The New York Times
Tom Seaver, Hall of Fame pitcher with Miracle Mets, dies at 75
Jerry Koosman- Mets All Time Lefthander (Part Three 1974-1985)
The Amazin' life of Hall of Fame Mets pitcher Tom Seaver
Mets Morning News for August 25, 2021 - Amazin' Avenue