Santiago McKimm was captured by Geronimo's band when he was around ten years old. When Geronimo surrendered to the U.S. Army, Santiago didn't want to leave his Apache family. He later lived in Phoenix, died and was buried there in 1941.
The photograph was taken in Geronimo's camp by Cornelius Fly, the photographer who accompanied the Army's expedition into Mexico. At the time, the Apaches were still considered hostile.