Koepke Family Genealogy Forum
My great grandmother emigrated from Schleswig-Holstein, Germany in 1884. I know the names of her siblings and I don't think there was a Ferdinand. On the other hand he could be a cousin. My great grandmother emigrated to Chicago, Illinois and in looking for her in Chicago I noted there were other Koepke's there at the time. You might try city directories in your research. Do you know where in Germany your ancestor was from?