David Cottrill Alexander (1864-1899) was a US Army soldier who was stationed at Fort Wallace in South Dakota during the Wapiti War. Born in the Midwest, he was the nephew of a man who married a Native American woman from the Canadian border area. In 1899, he took part in the destruction of a Wapiti sacred site in the Black Hills before returning to camp and chatting with another soldier, Leonard Stanisław, about their families and about Native Americans; Alexander told Stanisław about his aunt being Native. They were both gunned down by the outlaw Arthur Morgan when he infiltrated the camp to retrieve the sacred chanupa pipe they had stolen.