Thanks so much once more for such a generous response to my wistful and wishful thinking ! :) I had put John &Maria Margarethe to one side in June 2011... needing a break from the brickwall. I discovered other PA Deitsch in a paternal line... and no one knew! Your work is so thorough... but I have this irrational notion that a clue may manifesst yet as to MM's origins. When I can afford the Ultra mtDNA test, I'll let you know the results, as I am a direct and well-documented matrilineal descendent of John & Maria Margarethe's via their daughter Mary Troxell Mitchell (widow) m. John Shroyer. Their daughter Rachel Shroyer m. Gideon Games (sometimes written Gaines)... and their daughter Rachel Eliza Games m. Thos. Moseley Sallee, etc. My money is on her Pfalz-Swiss-Alsace-Bavarian origins.