I'm from Wisconsin, and my grandfather, Ferdinand Janke came to US in 1888 from Gremany. His brothers and sister were: Carl, Gust, Fred, Julius, Emil, Ferdinand, Albert, Augusta, and Tillie. Augusta and Fred stayed in Germany (we were told). They were mostly foresters and carpenters.
There is another "Janke" or "Jahnke" family here in our Wisconsin area (Wausau) that we are also trying to connect with. Perhaps we are all related, but I cannot see where your family and ours are connected. We will keep looking....Thank you.