Jerry Koosman in . . . The Franchise All-Time All-Stars

morris of course: Our Jerry Koosman put stamp on baseball history

Mets to retire Dwight Gooden's no. 16 and Darryl Strawberry's no. 18 in 2024

Jerry Koosman: All Time Mets Left Handed Pitcher (Part One: 1967-1972)

Jerry Koosman Baseball Stats by Baseball Almanac

Thrilled to be 'joining a great crew,' Jerry Koosman, 78, has jersey retired by New York Mets - ESPN

1969 Topps Jerry Koosman

Seaver was a 3-time Cy Young winner and was elected to the Hall in '92

Mets announce Jerry Koosman number retirement date –

Jerry Koosman interview