Sources:
“The Plains Indians: a cultural & historical view of the North American Plains Tribes of the pre-reservation period”, by Colin F. Taylor – Random House
“The Black Hills” by Robert Casey
Essays of Steve Schlarb
“A Sioux Chronicle”, by George E. Hyde, 1956, Univ. of Okla. Press;
“Red Cloud’s Folk: A History of the Oglala Sioux Indians”, by George Hyde