Premise: (d) to persons of Canadian citizenship who were members of the Privy Council of the United Kingdom including the Prime Ministers of Canada, the Supreme Court of Canada Chief Justices, and some Cabinet Ministers of Canada including the Leader of the Government in the Senate 1921-1930 and 1935-1942 the Right Honourable Senator Raoul Dandurand appointed to the United Kingdom Privy Council in 1941;
Hypothesis: he was leader in 1921