Between Sharon Donna McIvor and Charles Jacob Grismer, Respondents (plaintiffs) ; And, the Registrar, Indian and Northern Affairs Canada, the Attorney General of Canada, Appellants (defendants) ; And, Native Women's Association of Canada, Congress of Aboriginal Peoples, First Nations Leadership Council, West Moberly First Nations, T'Sou-ke Nation, Grand Council of the Waban-Aki Nation, the Band Council of the Abenakis of Odanak and the Band Council of the Abenakis of Wôlinak, Aboriginal Legal Services of Toronto, Intervenors : Before the Honourable Madam Justice Newbury, the Honourable Mr. Justice Tysoe, the Honourable Mr. Justice Groberman