Polo Grounds - history, photos and more of the New York Giants former ballpark
At Polo Grounds, legend of Willie Mays, Giants is still growing
Willie Mays at 90 -- He was Steph Curry, Michael Jordan, Simone Biles and Mikhail Baryshnikov - ESPN
The True Story of Willie Mays's Signing – Society for American Baseball Research
Willie Mays love-fest at dedication of new Atherton Little League field, News, Almanac Online
Willie Mays - Wikipedia
Willie Mays Academy of Achievement
Willie Mays: Most Up-to-Date Encyclopedia, News & Reviews
San Francisco Giants - #OTD 50-years-ago, Willie Mays was named the 1960s Player of the Decade by Sporting News.
June 7, 1956: Willie Mays homers twice in Giants' exhibition win at Metropolitan Stadium – Society for American Baseball Research
Catching up with the Say Hey Kid, Willie Mays, at 85
Willie Mays Academy of Achievement