First of all, it's not creole. It's French. Last time I checked French culture was around quite a bit longer.
The big man may have prounounced it with an R, and if the family chooses to pronounce it that way then it is certainly their choice. That doesn't make it correct, any more than the McMahans in my family are correct when we say Mac ma han. The R pronunciation is nowhere near a correct French pronunciation and to be honest makes people sound even more ignorant than the incorrect way it's been said up until now. People should leave well enough alone.
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