First questions Was Ehrhardt changed to Earhart and is Amelia Ehrhardt related.My mother claims she was her 3rd cousin. My mother's great grandmother was Franziska Ehrhardt the daughter of Georg and Katharina Wunder Ehrhardt. She was born in 1823 and was married in Viernheim, Hessen Germany on August 27,1849 to my great,great grandfather Nicolaus Pfenning who died May 2,1891 in Jersey City,NJ. Their children all Pfenning where Elizabetha Ehrhardt Pfenning, Johann Jacob P., Katie P., Nicholas P. Mary D. P., and John P.. Johann Jacob Pfenning was my great grandfather. That is all the information I have on Franziska