births & marriages of some children for Angus (Exedia) St. Pierre and Mary Ann Long ...seems odd that she would switch to Alexander after using Long on earlier docs...
http://www.rootschat.com/links/0jw0/Do you have them on census and if so, which ones and where? Is she marked as full Mohawk on census or documents, or is this from oral history?
If we are looking for her Mohawk name it may be Noontak tek hah Kwa ( Strawberry). Where did the story of her adoption come from?? We always keep an open mind regarding oral history, but also remember that it can sometimes get distorted or embellished, or slip forward or back a generation in the passing of the information.... J.J.
I will be modifying each answer of mine, as will elmfield, to remove some banter and try to bare bones to thread related subjects.