Before there were titanium woods and graphite shafts, golf clubs were made from the wood of hickory trees and had intriguing names like cleek, mashie and jigger. Golf was a game played not with high-tech equipment but with skill, finesse, and creativity. And the greatest hickory player of all time was Walter Hagen---until the day he met a teenage caddie at a country club outside Chicago. America's first touring golf professional, Hagen made (and spent)...