Old Tom Morris (16 June 1821 – 24 May 1908) designed or remodelled about 75 golf courses throughout his life in the British Isles, including The Open Championship courses of Prestwick, the Old Course at St Andrews, Muirfield, Royal Portrush, and Carnoustie. GolfPass has said that "You could make an argument that Old Tom Morris is the greatest golf course architect who ever lived".