A Thomas Poffenberger, son of Simon and Sara Ann Todd,Had ten children.He inherited the family farm in Simon's will. dated 16 July 1842. I don't know if these are the onese you are looking for but this farm was near the Antietam battlefield. Simon lived in Pleasant Valley. Adam and Oner Dorsey also had a son named John . He was born in Smoketown in 1797 and married Nancy Miller in 1824.They had ten children. He married again in 1848 to Margaret Weck and had five more children.The farm lands at Antietam seem to have come down from Adam through John. I am quoting from "From Germany to Antietam " by Thomas Poffenberger. If you can give me some dates for some of your early Poffenbergers perhaps I can help more.