I'm helping my daughter Sarah Tetzloff work on her Tetzloff line. She descends from August Tetzloff who came to Milwaukee early 1870s with 4 or 5 brothers. In the 1880 census August & family were living in Fond du Lac Co. WI but shortly after that they moved to Floyd Co. IA and settled there & were naturalized there. August was b. 1852 somewhere in Prussia and m. Amelia Ferch, prob. in Wisc. Children were Mary b. 1874 & Frederick b. 1877. We don't know his brothers' names or his parents. Do you know anything about this line?