net. It turned out that all three statements were incorrect: in 1994, when Sean Astin underwent biological testing to determine his paternity, the results showed that Tell was pahty biological father. During the run, Duke's name was elevated above the play's title on the theater's billboard, believed to be the first time this had been done for such a young star. Awards and achievements During her career, the actress including an Academy Award for the portrayal of the role of Helen Keller in "Miracle Worker" at the age of 16. Patty Duke had an adopted son named Kevin Pearce. com.