I just ran across a Herman and Frederica Sawalich in the 1880 census, Chicago, Cook Co, Illinois, ED 153. I'm trying to find where my Seiberlich/Seyferlich kin were in 1880. It is such an unusual name and would be pronounced similar to mine. Our kin, at least the immigrant families, were from Mecklenburg and Brandenburg.
This Sawalich family, judging from birth information, would have immigrated 1868-1875. Looks like the name was written Sawalisch.