Every Yankees Retired Number
Lou Gehrig, First To Have Number Retired, Launched A Major Tradition
HALLOWED GROUND: Monument Park, New York Yankees Museum honor greatest players from most legendary team in sports - Sports Collectors Digest
Yankees retired numbers
Yankees Retired Numbers - Who Are The 22 Yankees Who Wore Them
Lou Gehrig's Retired Number 4
Paul O'Neill Yankees No. 21 retired
How many jersey numbers do the Yankees have left? - Deseret News
Yankee Stadium: Monument Park - Retired Numbers - Lou Gehr…