From Native Authenticity: Transnational Perspectives on Native American Literary ...
edited by Deborah L. Madsen, chapter 4 by Malea Powell, note 1:
I could go on at length about why I haven't tried to enroll, despite the fact that I have all the necessary documentation to fill out an enrollment application, and become a 'card-carrying Indian' but that is beyond the scope of this essay (...)
I've looked over genealogical records along with skimming some of her academic writings. I've not found anything from her about why she believes what she says she believes about her heritage. No names of ancestors, no stories. Nothing about her childhood or current community.
The Miami Nation of Indiana (not federally recognized) has a tribal enrollment process based on historic tribal rolls, it is not a mysterious process. If she has actual records here in reality, I wonder why she doesn't discuss them. If her families were members of tribes wrongfully terminated, surely she would incorporate this as a professor in an American Indian Studies Program?
She also claims heritage related to the federally-recognized Miami Tribe of Oklahoma.
My impression is that she created this identity while in college.