Ralph Stanion worked as a teacher and as a superintendent on reservations beginning in 1898 on the Pine Ridge Reservation in South Dakota.  By the 1920s, he was working at Fort Apache in Arizona where he took this picture.  Other images in the collection, WH644, portray his family and Native Americans including one image of Buffalo Bill's Brule Sioux.  Papers and photographs are available on the 5th floor of the Denver Public Library in the Western History/Genealogy Department.