The 1906 U.S. Open was the twelfth U.S. Open, held June 28–29 at Onwentsia Club in Lake Forest, Illinois, a suburb north of Chicago. Alex Smith won the first of his two U.S. Open titles, seven strokes ahead of runner-up Willie Smith, his younger brother and the 1899 champion. U.S. Open 1906: June 28–29, 1906 at Onwentsia Club. Champion: Alex Smith, at 295. Wiki link