Sitting Bull did not agree to the treaty. He told the Jesuit missionary, Pierre Jean De Smet, who sought him out on behalf of the government: "I wish all to know that I do not propose to sell any part of my country." He continued his hit-and-run attacks on forts in the upper Missouri area throughout the late 1860s and early 1870s. The events of 1866–1868 mark a historically debated period of Sitting Bull's life. According to historian Stanley Vestal, who conducted interviews with surviving Hunkpapa in 1930, Sitting Bull was made "Supreme Chief of the whole Sioux Nation" at this time.
Alfred E. Bull Quakers and was named to the All-American team in 1895. During a game between Penn and the Carlisle Indian Industrial School, Bull faced off against All-American and early professional footballer Bemus Pierce. Bull and Pierce faced each other on the line throughout the game, and on a play late in the game Pierce knocked Bull to the ground, and the play went over him. After the play, Pierce, who was a Native American, cried out to the Penn players, "Look, look at Sitting Bull." Bull also rowed for the Penn crew. After graduating from Penn, Bull served as head football