Researching DeUnger, also spelled D'Unger. We are trying to locate information on parents and descendants of Dr.Robert D'Unger, born 1825 in PA near MD border. Robert lived in Baltimore and Chicago. His brothers were: John who settled in Baltimore, David thought to have lived in MD, and Barnett G.who lived in Trenton, NJ. Other names associated with family are Ellsworth, Elwood, Wylis, Claude, Margaret, Ida, Bertha,and Sallie. Any information would be greatly appreciated.