There are two Oglala Lakota chiefs named American Horse notable in American history. Historian George E. Hyde distinguished them by referring to "Chief American Horse the Elder" as the son of Old Chief Smoke and the cousin of Red Cloud, and "Chief American Horse the Younger" as the son of Sitting Bear, and son-in-law to Red Cloud. American Horse the Younger (1840 – December 16, 1908) was an Oglala Lakota chief, statesman, educator and historian. American Horse the Younger is notable in American history as a U.S. Army Indian Scout and a progressive Oglala Lakota leader who promoted friendly associations with whites and education for his people. American Horse the Younger opposed Crazy Horse during the Great Sioux War of 1876-1877 and the Ghost Dance Movement of 1890, and was a Lakota delegate to Washington. American Horse the Younger was one of the first Wild Westers with Buffalo Bill's Wild West and a supporter of the Carlisle Indian Industrial School. "His record as a councillor of his people and his policy in the new situation that confronted them was manly and consistent and he was known for his eloquence." American Horse the Younger gained influence during the turbulence of the Great Sioux War of 1876-1877. After news of the death of Chief American Horse the Elder at the Battle of Slim Buttes, Manishnee (Can not walk, or Played out)" seized an opportunity and assumed the name "American Horse." American Horse the Younger was not related to American Horse the Elder, son of Old Chief Smoke. He was the son of Sitting Bear, leader of the True Oglalas, a band of Oglala opposed to the Smoke people The identities and accounts of American Horse the Elder and the American Horse the Younger have been blended by some historians. Like his great friend Crazy Horse, there are no known photographs or drawings of Chief American Horse the Elder. "The Oglalas seem incapable of clearing up the tangle."