Some provinces still have union Jack type of flags, Such as Manitoba, B.C., Ont. and many of their coat of arms (provincial seal) also contain a union jack.
Hey numbnuts, read my name, I think I know which provincial flags still have the union jack, namely my home province of Ontario, and the Maple Leaf flag is a Liberal Party creation, it essentially represents the Liberal Party of Canada, and came into being right when they started introducing multiculturalism and all their other social reforms.