I also have a great-grandmother named Wiebke, later Phoebe. She also had a daughter named Wiebke who died in infancy. She married Jurgen Neuwerk in Germany, then emigrated to the USA in 1882 and lived in Illinois. I have been unable to find her family in Schleswig-Holstein or any of Germany. Is there a chance I could be related to any of the other Wiebke/Phoebe responders?