Dakota Sioux artist Mary Sully was the great-granddaughter of respected nineteenth-century portraitist Thomas Sully, who captured the personalities of America's first generation of celebrities (including the figure of Andrew Jackson immortalized on the twenty-dollar bill). Born on the Standing Rock reservation in South Dakota in 1896, she was largely self-taught. Steeped in the visual traditions of beadwork, quilling, and hide painting, she also...