My great grandmother was Carolina Allgier (I don't know if the spelling is correct). She married Joseph Smith. Their son, Joseph B. Smith was born in 1871 (don't know where) and lived in Pittsburgh, PA with his second wife, Clara Pfaff. I don't really know where Carolina and Joseph were born, but I am guessing Germany (they were Catholic) probably in the 1840's or so. I can't seem to find anything in immigration records, but that could be because spelling might be off. Maybe the "Smith" was a "Schmidt" - who knows! Any advice? Thanks, Marianne.