You might want to add to the links where she was into profoundly deviant sex practices. This part of her life is not as well known of course either.
(Sort of like how the 'great' poet, Robert Frost, and his life is treated. He had 4 of his female relatives committed to insane asylums, his son committed suicide, and he traveled to Moscow to meet w/ Kruschev .... Frost was a big, big, RED.)
Concerning Sanger, it's amazing how perverts are on the hero pedestal these days. The Kinsey movie is a prime example.