John Gneisenau Neihardt was an American writer and poet, amateur historian and ethnographer. Born at the end of the American settlement of the Plains, he became interested in the lives of those who had been a part of the European-American migration, as well as the Indigenous peoples whom they had displaced.

Heȟáka Sápa, commonly known as Black Elk, was a wičháša wakȟáŋ and heyoka of the Oglala Lakota people. He was a second cousin of the war leader Crazy Horse and fought with him in the Battle of Little Bighorn. He survived the Wounded Knee Massacre in 1890. He toured and performed in Europe as part of Buffalo Bill's Wild West.