ZlaticaBeca great research and great questions.
My grandmother mentioned she might have had a Polish grandmother. I'm wondering if Stephanie's mother was Polish. What you say about Frank and Stephanie being able to communicate makes sense if she spoke German. On my grandmother's Romanian birth certificate it says that Stephanie was converting from Orthodox to her Romanian husband's religion of Roman Catholic. On my grandmother's sister's marriage certificate Stephanie lists her maiden name as Fox. I was thinking that was the English translation of Lisu? I've got to find another document that shows Stephanie's birthplace and her parent's names. Sure she might have been born in Russia but now I'm questioning if her parents were.