For what it's worth, Wazí Aháƞhaƞ (Pine Ridge) is the reservation where my father's brother has kin by marriage. Yes, that's complicated. It's also perfectly ordinary for tribal people to trace connections through long trails of relatives.
On my mother's side, our Cherokee ancestor, we don't know who she was. She was one of the ones who survived by assimilating. But I am still finding bits of things, all this time later, where family traditions overlap Cherokee culture. Burying fishheads in the garden, that one was obvious!