The Mets should retire Mike Piazza's #31. Why haven't they
Humble Jerry Koosman joins Mets hopefully-expanding pantheon with
He Only Played 3 Seasons but the NY Mets Should Retire His Number
New York Mets - Wikipedia
Best Mets players by uniform number
Mets' retired numbers
Mets' retired numbers
10 New York athletes who deserve to have their numbers retired
Mets to retire Gooden's No. 16 and Strawberry's No. 18 next season
Mets to Retire Jerry Koosman's Jersey - The New York Times
The Hall of Very Good Mets - Amazin' Avenue