Wilhelm Fister, sorry I haven't answered you sooner. We moved from Germany back to the States and I have been miserably slow in re-connecting. Yes I think a DNA search would be terrific. Looking at all the variations of Pfister, we have quite a family out there. Robert William Pfister out of my immigrant Kaspar Pfister,who left from Groul/Grunmetstetten Germany in the year 1845.