Elizabeth Catlett   MOTHER OF THE MOVEMENT

Elizabeth Catlett, sculptress: https://www.google.com/search?q=elizabeth+catlett&client=firefox-beta&hs=WES&rls=org.mozilla%3Aen-US%3Aofficial&channel=sb&tbm=isch&tbo=u&source=univ&sa=X&ei=FZDGU7CPLoGlyAT0gYKYCw&ved=0CKEBEIke&biw=1440&bih=799