That’s when Peter, then 16 years old, got incredibly lucky, even for an Irish boy: He caddied at the U.S. Open, where the player at his side, Hale Irwin, happened to win the darn thing. With the exception of Eddie Lowery, who was 10 when he looped for Francis Ouimet in the historic 1913 Open at The Country Club in Brookline, it is likely that no winning caddie in an Open has been younger.
