New York Mets, ArmchairGM Wiki
Dr. Shamsky? No, but a key figure in Mets' 1969 success
This Date in Mets History: April 27 — Ryan sets K record, Yogi
1969 World Series - Wikipedia
1969 New York Mets Roster
Mets playoffs: Relive the Mets' NLCS appearances in 1969, 1973
Jerry Koosman - Wikiwand
Yo la tengo!” – Fact Check – SABR's Baseball Cards Research Committee
Yogi Berra - Wikipedia
New York Jets - Wikipedia
New York Mets - Talkin' ⚾Willie, Mickey, (DiMaggio) and the