This article is an expanded version of the opening address Dr. Morley delivered at a University of Toronto symposium, "Seventy-Five Years of Neurosurgery in Canada," celebrating the 75th Anniversary of the appointment of Kenneth G. McKenzie, Canada's first career neurosurgeon, to the University of Toronto and the Toronto General Hospital in 1923. Kenneth G. McKenzie (1892-1964) was the first surgeon in Canada to limit his practice to neurosurgery. This article contains a brief biographical study of the man, his upbringing, and management of his professional life at Toronto General Hospital. Some of his published neurosurgical articles are also reviewed.