About:
Mary Lou Harrington (born March 11, 1931) was an American child actress.

• Known For
• 
  It Comes Up Love
  as
  Constance Peabody
• 
  The Boy from Stalingrad
  as
  Nadya
• 
  My Favorite Wife
  as
  Chinch Arden
• 
  Eagle Squadron
  as
  Child
• 
  A Tree Grows in Brooklyn
  as
  Girl (uncredited)