Dr. Locke Mural by Pierre Hardy, Cobden, ON, 2002 Williamsburg Dr. Mahlon Locke (1880-1942), a highly skilled and qualified physician, gained fame for his treatment of various ailments by manipulating of bones of the feet. Many, including the rich and famous, visited his clinic in Williamsburg. Even during the Depression years of the 1930’s, the village prospered. Hundreds of patients were treated in a single day.