A long time ago in the early 1900s after the Cherokee and the Choctaw had been removed from Arkansas to Oklahoma (yes, another removal), there were two young Indian women on the reservation in Oklahoma. They were on their own; ages 12 and 15.
Along came two brothers, two white men looking for some "action" so to speak.
So, they spied the two young Indian women and one brother said to the other, "Ah look, two squaws, one for me and one for you!".
So they took these two "squaws" and took them into what is known as concubine. They lived with these men bearing no children ( as to why ...) and eventually managed to escape these horrible men that raped and beat them for many years until they manged to finally escape. One ended up in Texas; the other in Nevada .
This is a true story, I'm sad to say this really; relatives in fact. Now how sad is this? It sets the stage for a myriad of horrible dysfunctionalism ranging from violence and physical abuse to severe and deadly drug/alcohol problems.
As for the term squaw, where I live, the local indigenous people had an area where they live that was named "Squaw Valley" by the white man that came here.
Squaw = to the word vagina in these parts or in other words that aren't so blunt, a slave-girl for sexual service.
Because this horrific offense was brought to light and made an issue by the tribal chairwoman for the region where the tribe originally lived, she was able to get that name changed to something else. This happened about 10+ years ago I'd say.