A history and the purpose of Native American boarding schools along with stories from students who attended residential schools. Many code talkers who attended boarding schools said the schools were run like military organizations, and this made it easier for them to adapt to US military life.
Source: Edwin Schupman (Muscogee) and National Museum of the American Indian, Smithsonian Institute. “Boarding School-Native Words Native Warriors. 2007. http://www.nmai.si.edu/education/codetalkers/html/chapter3.html