FYI to anyone trying to identify "Stophell". The book "Mill Wheel to Plowshare", footnote on page 30, says -- Christopher Orndorff bought Lot No. 1 in Sharpsburg from Christopher Cruss on Aug. 23, 1781 for 100 pounds, (continues). Since the lot number, the date and the amount paid match the original post I can only assume that Stophell and Christopher are the same person.
According to my data this Christopher would be the one born on 11/23/1752, died 9/14/1823 and married first to Mary Rohrer and second to Mary Ann Thomas. He would be the son of Johann Christian Orndorff (Christian ll)(11/15/1726 - 12/10/1797) and Elizabeth Ann Hoffmann.