Yup. I'd be afraid too. That's a heck of a heritage to live up to. World-class violinists and pianists; an army that routinely wins when outnumbered 3:1. The per capita number of Jewish people who've won Nobel Prizes is about a thousand percent higher than any other ethnic group. Doctors, lawyers, CPAs . . .

"Christian" and "Saint ___" are Christian surnames. "Kantor", "Cohen" and "Levi" are the only Jewish surnames, so any German surname except those can be Jewish or Christian.

You should delete your question. You've opened yourself to scammers and spammers by putting your e-mail address there in your post. The chance of Robert having a Yahoo! account, being interested enough in genealogy to check this board, and seeing your post in the day or two it is on the first page is very, very small. Without a surname, no one of us regulars can help you, even if we wanted to. We almost never reveal details, like addresses, of living people.