WISCONSIN COLLECTION: “Portrait of Oto man, (George) Arkeketah, Head Chief” (1898) Portrait of Oto man, (George) Arkeketah, Head Chief. Part of Siouan (Sioux) and Otoe Tribes. http://www.wisconsinhistory.org/ Tagged 1800's, AMERICAN INDIANS, NATIVE AMERICAN, WISCONSIN COLLECTION.