 In 1873, Luther Standing Bear saw the Sioux warriors return from the large-scale attack on a big hunting group of Pawnees in Massacre Canyon, Nebraska.Later he would write about it and be one of the very few to give a Sioux eyewitness account of the lead up to the attack on the hunters, and of his father's role in the battle.In the late 1870s, George Standing Bear built a general store, the first Native American-run business on the Spotted Tail agency.