Possible Clues:

• 'Light in My Darkness' author Helen
• "The Miracle Worker" role
• Helen ___ ("The Miracle Worker" role)
• Helen who helped establish the 46-Down
• Helen ..., US writer and lecturer who was both blind and deaf
• ACLU co-founder Helen
• Helen, 1880-1968, US writer who became deaf and blind aged 19 months
• Famed Helen