3526197 Keokuk, Chief of the Sacs and Foxes, 1838 (hand-coloured lithograph on wove paper) by Bowen, John T. (1801-c.1856); 49.8x34.6 cm; Corcoran Collection, National Gallery of Art, Washington D.C., USA; (add.info.: Keokuk (1767??848) was a chief of the Sauk or Sac tribe in central North America noted for his cooperation with the U.S. government which led to war with Black Hawk. Upon his death, his son Moses (1821-1903) assumed the position).