Elizabeth Catlett (April 15, 1915-April 2, 2012) was an African-American artist who explored themes relating to race and feminism in her range of sculpture, paintings, and prints.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Elizabeth_Catlett
Mother and Child by Elizabeth Catlett
1956 / Terra cotta / 11 1/4″x7″x7″ / Museum of Modern Art, NYC
Elizabeth Catlett on Artnet: http://www.artnet.com/artists/elizabeth-catlett/