I don’t know whose version is true, hers or CBC, but I find it interesting that it seems to matter so much. She obviously felt some bond with the Crees of Saskatchewan. Apparently her (adoptive) mother claimed to have native ancestry also (the Nova Scotia tribe). I would be interested in knowing why she invented this story, if it turns out to be invented; the words CBC and research have never appeared in a sentence before so I will reserve final judgment.
Now, if CBC is into looking at ancestry, there’s this fellow in Ottawa, Justin I think his first name is, and no disputes about maternity but ...