Is there documentation for Mary Hart as Black Elk's wife and Mary (Sarah) Hart as his daughter?
Wikipedia doesn't mention them:
Wife #1: Black Elk married his first wife, Katie War Bonnet, in 1892. She converted to Catholicism, and all three of their children were baptized as Catholics.
His son, Benjamin Black Elk (1899–1973), became known as the "Fifth Face of Mount Rushmore", posing in the 1950s and 1960s for tourists at the memorial. Benjamin played an uncredited role in the 1962 film How the West Was Won.[16]
After Katie's death in 1903, Black Elk became a Catholic the next year in 1904, when he was in his 40s. He was christened with the name of Nicholas and later served as a catechist in the church.[4]:14[17]:44 After this, other medicine men, including his nephew Fools Crow, referred to him both as Black Elk and Nicholas Black Elk.[17]:44
Wife # 2: The widower Black Elk married again in 1905 to Anna Brings White, a widow with two daughters. Together they had three more children, whom they also had baptized as Catholic. The couple were together until her death in 1941.
