Question: Vera Manuel, was Secwepemc-Ktunaxa, daughter of cultural leader Marceline Paul and political leader George Manuel, Sr, the Ktunaxa, also known as Kutenai, and Kootenai,  are an indigenous people of North America, who historically occupied extensive territories in which region, present-day United States and British Columbia, Canada?
Sentence (from "Canada under British rule"): Although confederation in 1867 led to an enlarged Dominion with increased autonomy over domestic affairs, Canada still remained a colony within the British Empire and was thus subordinate to the British Parliament until the enactment of the Statute of Westminster in 1931.
Relevant evidence: No