Public Statues At Large Of The United States Of America 1845: Contains 1837 Treaty with the Chippewa
The link below will open a 2 page document which illustrates both the treaty and signatures. Importantly, White Thunder the Lac Du Flambeau chief is one of the signatures of the treaty, evidencing his status is the band.
Map Source: https://data.glifwc.org/ceded/reference.maps/Wisconsin1.Map64.png