Maria Margarita “Margaret” Tafoya (August 13, 1904-February 25, 2001) was the matriarch of Santa Clara Pueblo potters. Santa Clara Pueblo is famous for producing hand-crafted pottery, specifically blackware and redware with deep engravings.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Margaret_Tafoya
Olla (Water Jar) by Margaret Tafoya
c.1940-1970 / Clay / 5″x5″ / Brooklyn Museum, Brooklyn, New York
Margaret Tafoya on Artnet: http://www.artnet.com/artists/margaret-tafoya/