Historic Photograph Prairie Chief, a Southern Cheyenne; son of Wolf Grey/Grey Beard and Old Standing Woman. Prairie Chief&#x27;s family was at the Sand Creek Massacre. Wolf Grey appears on the list of Sand Creek people which was compiled in 1865 at the treaty of the Little Arkansas, Kansas. Wolf Grey or Grey Beard was shot and killed in 1875 while being taken to prison at Fort Marion, Florida. Prairie Chief passed in October, 1917.