I am looking for further information on Johann Jahnke born about 1830 in Reinwasser, Kries Rummelsburg, Stadt Pommerania, Prussia. He immigrated with his wife (Fredericka) and four sons Johann, Gustav, Albert and Wilhelm to Effington Township, Ottertail County, Minnesota in 1892. A son (Hermann) and his family stayed behind in Germany and he later immigrated in 1925 as a widower, to Minnesota leaving family (a son and daughter) in Stettin, Germany.
A cousin Carl Jahnke, also from Reinwasser immigrated to the same area in Minnesota in 1887. His wifes name was Henrietta and children August, Carl, Bertha, Hermann, Wilhelm, and Emma.
Any information prior to 1892 in Germany (now Poland) or relations of above left in Gemany, it would be appreciated.