This Day in Yankees History: Yogi Berra switches boroughs - Pinstripe Alley
This Date in Mets History: April 27 — Ryan sets K record, Yogi unretires to join Amazins - Amazin' Avenue
Yankees legend Yogi Berra transcends time
Yogi's Mets years remembered fondly
Yogi Berra - Wikipedia
Yogi Berra Smithsonian Institution
Yankees Hall of Fame catcher Yogi Berra dies at 90
Yogi Berra, Biography, Statistics, Quotes, & Facts
Yankees Hall of Fame catcher Yogi Berra dies at 90
Yogi Berra - SHSMO Historic Missourians
Berra, Yogi Baseball Hall of Fame
Yogi Berra Early Life and MLB Career, MLB Hall of Famer