You probably trace back to Jacob, born (1803-1872) who was the sixth child of Henry, the fourth child of John, the founder of the Washington Co. Md. Poffenbergers. See: From Germany to Antietam, The early history of the Pfaffenberger family by Thomas Poffenberger. Published by Xlibris order by calling 888-795-4274. Also available from Amazon.comBorders special order. See pp.250 for Delanah Eakle and 230-231.