… Tk’emlups te Secwepemc First Nation in says Prime … school. Article content Cowessess First Nation in Saskatchewan revealed a … and intergenerational survivors,” the First Nation said in an earlier … and Assembly of First Nations National Chief RoseAnne Archibald.… Tk’emlups te Secwepemc First Nation in says Prime … school. Article content Cowessess First Nation in Saskatchewan revealed a … and intergenerational survivors,” the First Nation said in an earlier … and Assembly of First Nations National Chief RoseAnne Archibald.