I have 3 questions:
1. Should I assume that if the Beider Poland Book lists a last name as
"Rabbinic", (examples of some names: Adler, Halpern, Alber), that the members of
these family were >from the Kohanim tribe?
2. In the 18th and 19th centuries, were there Rabbi who were Levy's and
Israelites? Or just Kohanim?
3. Should I, also, assume that there were Rabbi in the Adler, Halpern, and Alber
families that I am researching (18th and 19th century) or not necessarily?