As an IVESTER descendant (indeed, a "double Ivester," as owing to the marriage of William and Lovina Ivester, I have 2 of Hugh Isbister's sons, William's father George Newell Ivester and Lovina's father Hugh Ivester, Jr. in my direct line) who resides north of the Mason-Dixon, let me respectfully give you a tip regarding etiquette.
"Yankee" signifies "invader, crass plunderer, arch-materialist, arrogant hypocrite, treacherous heathen" in the Southern lexicon.It is a word not to be uttered in refined company, or around children.Surely, wherever we Ivester descendants might chance to dwell, we should not describe ourselves in such base terms.
It is best, in such matters, to follow (as in so many things) the example of Gen. Robert E. Lee, a man who eschewed swearing and coarse language.Rather than use the horrid "Y" word, when the necessity arose to make mention of the invader, Gen. Lee preferred the delicate locution, "Those People," as in "I wish that we could today have shot dead more of Those People."All knew to whom the general referred.
Your Ivester kinsman (OK, my Mom was a Pittsburgher)