Looking for infromation on Nicholas Demgen and his wife Mary Grak (Graff), born in Germany, probably came to America abt 1850. Settled in Houghton/Baraga Co., MI near L'Anse. Had a brother or cousin Peter Demgen who married Mary. He settled in the Manitowoc Area of Wisc. Suspect they came over with their parents. Based on children born in early 1860's, they were probably born late 1830's to 1840. Would appreciate any leads.