I am looking for the families of Peter, David, Joseph and Christian Wagner born in Illinois between 1859-1872. They would be related to the Oyers and Kempfs. I believe Joseph Sr. 1835-1894, their father is the brother of my Great-grandmother Barbara Wagner Kempf. He was a Mennonite minister in the Roanoke area from 1867 until his death. I am trying to trace the family back to France and Switzerland. Any information would be appreciated!