My ancestors (Pieper, Koepke, Vahl, Schweder) were from areas of Germany that are now part of Poland. They emmigrated to the US in the early 1880s. What happened to the Germans who lived in these areas after the boundries changed as a result of the aftermath of WWI and WWII. Did most stay or were they forced out? Also, were most of the records from these areas destroyed as a result of war?