Thanks, Ellen and Edward.
My patience has worn thin. The possibilities for matching are way too numerous. What do I do? simply make another tree for Jewish ancestors, one by one? There is no single connector ancestor at this time because my missing link was not allowed to sign my father's birth register in Frankfurt DE. A DNA test led me to my ancestors in this tree, my Balkan tree that is now in a Gedcom. I wish I'd never refreshed the tree--the last time was today, and it made my desire to find my Jewish GF even more remote. I simply cannot go on. It's like boxing with Ghosts.