This letter to the editor was in today's paper.
Colloquial pronunciations annoying
Hey, Savannah! If you are going to study DeRenne, how about studying how to pronounce it correctly? It is a French word. It is not pronounced "Du-ran" or "Da-ran" it is pronounced Day-Ren-Nay (three syllables). While you're at it Whitemarsh is not pronounced WHIT-Marsh but WHITE-marsh, there is a silent e in the word making the "I" long, not short.
Yes, I know that is how you say it around here, but it makes y'all sound ignorant, not quaint or cute.
This guy is an idiot. DeRenne is a family name and Whitemarsh is one word. Maybe to an outsider, pronouncing these words the way we do might make us seem ignorant, but his pronunciations make him sound like an uptight, transplanted yankee with nothing better to do than complain.