With Frank Linderman leading many of the European-American supporters, the US Congress passed legislation in 1916 to establish what was first called Rocky Boy's Reservation. The Indian Inspector Frank Churchill was sent to Montana to negotiate with the chief. Ahsiniiwin educated Churchill about the Chippewa, saying that they lived all around Montana, including at the Blackfeet and Flathead reservations, as well as near many cities dominated by European Americans, including Anaconda, Billings, Butte, Deer Lodge, Great Falls, Havre, Helena, Missoula, Wolf Point and others. Ahsiniiwin asserted that he was peaceful at all times, and he spoke only for the Chippewa people. He had worked to establish Turtle Mountain Indian Reservation and signed the 1889 Red Lake Agreement in Minnesota.