The more I think about it, the more out of touch you really seem. The people you label as plenty exotic from NOLA were actually deported from eastern Canada(your "tundra") and St.Petersburg(what they've been calling Leningrad for the last 20 years) is pretty well on the Arctic circle, and yet is not part of your "tundra". (and Yes I realise that St.Petersburg isn't tundra, neither is the vast majority of Russia or Canada)
Ya. The cajuns decendants of the acadians of Eastern Canada(present day Nova Scotia/New Brunswick). Deported by the British/Americans(who were one & the same at the time) to what is now the state of Louisana.