Denton Arthur Cooley, MD, a pioneering heart surgeon, died November 18, 2016, at age 96. He was born in Houston, TX, on August 22, 1920, to Ralph Clarkson Cooley and Mary Fraley Cooley. From the beginning, Cooley’s career in medicine and his contributions to humanity seem to have been foreshadowed. His father was a prominent Houston dentist, and the attending obstetrician at his birth was Dr Er...