Rocky Boy had already supervised his Chippewa band census in 1908 and had it certified by the Interior Department. Chief Rocky Boy was living on the new Chippewa Reservation near Babb, Montana with 50 to 60 people. He negotiated with the US Indian agent for additional lands, which were approved in 1916. Soon after the reservation was officially established, Chippewa and other landless Indians, to include the Cree from north central Montana, western Montana, and northern Idaho, settled alongside those already living on the new Rocky Boy Reservation.