Geronimo (1829-1909) was a leader and medicine man of the Chiricahua Apache tribe. He fought against both the United States and Mexico as they encroached into his tribal lands, known famously as the Apache Wars. He eventually surrendered to the U.S. army and was sent to Fort Sill, Oklahoma, where he was kept as a prisoner of war until his death.
S. M. Barrett (1865-1948) was the superintendent of schools in Lawton, Oklahoma, when he interviewed Geronimo, who was then a prisoner of war. He authored a few works of fiction as well as Barrett’s Practical Pedagogy.