Helen Keller is famous. She was deaf, dumb, and blind, but brilliant. Her story of how she overcame her disabilities through the loving-but-stern therapies of Ann Sullivan is ubiquitous, made famous by the movie The Miracle Worker starring Patty Duke and Ann Bancroft. Helen also wrote books. According to Wikipedia, she was the first deaf-blind person to earn a B. A. degree, and was a founding member of the American Civil Liberties Union (ACLU). Yes, her politics leaned to the left! BTW, I agree with this quote wholeheartedly.
Her Wikipedia page. Her Amazon Books.
Here is a rare clip of Helen and Ann from a 1928 Newsreel.