RESUMEN
Beginning in 1924, the US Office of Indian Affairs sent public health or 'field' nurses to Native nations to provide preventative healthcare and education. The field nurse programme began under the US policy of assimilating Native Americans. To that end, field nurses championed 'modern' institutionalised medicine and opposed Indigenous health traditions. They taught an ethnocentric form of health education to Native mothers, and their work was complicit in the genocidal policy of removing Native children to federal boarding schools. However, Indigenous women resisted many of the interventions of the field nurse programme. They also exercised medical pluralism and sought other field nurse services relating to childbirth, prenatal and postpartum health, sometimes in defiance of the nursing programme's professional boundaries. The history of the field nurse programme reveals the ways in which professionalised public health nursing served settler colonial policy, yet it also showcases Native women's self-determination as pregnant patients and as nurses themselves.