An ancestor of mine, Ferdinand Frank Wilhelm Hanke, is listed in a biography as being born in Kueltz, Germany on April 24, 1843. His brother, Albert Frank William Hanke, was believed to be from Hungart, Germany. This family settled in Wausau, Wisconsin, USA and then the brothers moved to different parts of Iowa, USA. Could anyone help identify what part of Germany they would have come from as Google searches have been unsuccessful?