Golfer and golf course designer. Born into a notable golfing family in Earlsferry (Fife), his elder brother was Bob Simpson the famous Carnoustie-based club-maker. The younger Simpson was certainly a talented golfer, finish in the top rank in successive Open Championships, through the 1880s and 1890s. As an architect, he undoubtedly assisted brother and Old Tom Morris (1821 - 1908) in the remodelling of the Carnoustie course and Royal Aberdeen course at Balgownie. He certainly designed the course at Nairn (1887). In 1891, he took up the post of Professional at Royal Isle of Wight, but was quickly back in Scotland at Prestwick and then Carnoustie. He became the Professional at Balgownie in 1894. While there, he was to design courses including Ballater (1905), Balnagask at Torry (1906), Cruden Bay (1898) and Stonehaven (1896), together with private courses on estates such as Glenmuick, Invercauld and Mar Lodge. He extended the Royal Aberdeen course (1905-10) and added the Murcar Links course in 1909. In 1911, he moved across the Atlantic taking up position of Senior Professional at the Country Club of Detroit. He returned to Carnoustie in 1922, but went back to the USA the following year, working in Indiana, Illinois and Ohio. He died in Detroit.