1. I just came across your posting. I don't know why I didn't get notified of it when you wrote it.
2. If I have right Peter, your great grandparents are William Wendel and Isabelle Cler. We knew them quite well; my children referred to him as "Uncle Will", although he was a couple of generations removed.I don't remember your grandfather, but I knew (or know) most of your great aunts.
My wife is a granddaught of Frank Eisenmenger, half brother of Will.