
Caddies at clubs traditionally had nicknames by which they were known. Some of the nicknames of the caddies at Augusta National have become famous as, for the first 48 years of the Masters, players were required to use the club's caddies.
Thus the world learned of Stovepipe (John Henry Gordon) who was caddying for Gene Sarazan when he played ‘the shot that was heard around the world’ at the 1935 Masters. This caddie got this nickname from the stovepipe hat he habitually wore.