Yes, I've heard of the Alabama-Coushatta Reservation, and let's not forget the Kickapoo in Eagle Pass and the Ysleta Del Sur Pueblo near El Paso. The Mount Tabor Indian Community consisted of members of MIXED blood who had once been part of the Cherokee Nation -- that by 1882 was in Oklahoma.

My point was that I believe it was unlikely that remnants of any tribe would allow a full-blooded child to be adopted by whites. It does not make sense historically.

The word "unlikely" denotes some possibility (although extremely marginal in my opinion) that something like this could have happened. Thus, I suggested to the poster that probate records (family law/adoption) be checked.

I think it is likely that while Allie was in OK the census takers there would certainly have recognized her Native American heritage and not listed her as white on all the censuses she participated in.

If you like we can agree to disagree.