My great grandfather William Earnest Guenther came to America in 1870. He lived in Michigan and married Nettie Arvilla Carothers. He was born Marh of 1840. On his naturalization papers he listed that he had left from Jasszow, Kammin, Pomerania, German Empire and his name was Wilhelm Gunther. His passenger records listed his name as Wm Guenther. He died in Spokane, Washington in about 1920. He had divorced Nettie.
I have looked at records at the LDS History Library in SLC UT. They did not have records from this town. I have been searching for about four years. My family cousins have been trying to find him for years.
I would appreciated additional help.