John D. Clark, Ph.D.
Clark, John Drury
August 15, 1907 – July 6, 1988
Fairbanks, District of Alaska, USA
Pen Names
Doc Clark · Doctor John D. Clark · Dr. John D. Clark · Dr. John Drury Clark · J. D. Clark · John C. Clark · John D. Clark · John D. Clark, (Ph.D.)