Patty Duke

Anna Marie "Patty" Duke (December 14, 1946 – March 29, 2016) was an American stage, television and movie actress. She was born in Manhattan, New York City. Duke was married to actor John Astin and had two children; Mackenzie Astin and Sean Astin. 
In 1963, at age 16, Duke won the Academy Award for "Best Actress in a Supporting Role" for playing Helen Keller in "The Miracle Worker". At the time, she was the youngest person to win the award. 
On March 29, 2016, Duke died of sepsis from a ruptured intestine in Coeur d'Alene, Idaho. She was 69 years old.