By Pinkskin tribe are you meaning tribes like the Nootka tribe who have adopted in pinkskins, but are still primarily Amerindian or full out separate tribes that are fully pinkskin?
The Tsawassen band I believe is primarily pinkskin, but are not necessarily considered a tribe by the Nations, again I think one had to be taken under the wing of an existing tribe so to speak even if it was just a farmer living on the land and giving lip service to the tribe who held that area and was left alone for it.
Unless you count the Mormons in Salt Lake City under the Utes as a tribe.

They technically fall under Ute jurisdiction but pretty much run themselves.