The Displaced Indian Bride by Florence Linnington

Kimana is a lone Shoshoni woman without hope. Set upon by men who mean to take her virtue, she flees into the Nez Perce Reservation. But she will be sent to a prison in the East unless she marries Dancing Stream, son of a white man and a Nez Perce woman. With a yawning chasm between them, Kimana and Dancing Stream must find a way to bridge the gap.