I have a friend who, according to the 1928 Bureau of Indian Affairs records, is of the Numsoose Tribe. Trouble is that the Numsoose don’t exist anymore, and haven’t for long enough that people think they’ve heard of them, but can’t quite say where.
Many people figure “Indian” is “Indian” and the tribe isn’t all that important. That is like saying the fact that you were born in Mississippi or have family in Ireland is irrelevant. Or that Mexican, Spanish and South American are all pretty much the same.