According to family legend Jacob was sent to America as a tax collector for King George. He was a in a “common law marriage with Mary Adkins, and had seven children. As the Revolutionary War was beginning he was called back to England and did not take Mary or his children back to England with him. When he died he left money to Mary and his children, but they would have to go to England to collect the money. The money was never collected, so they never received any money from him or his family. the Adkins name was passed on to the family.
Jacob, was born as the Earl of Oxford about 1730, Jacob would have been the son of Edward Harley which was the 3rd Earl of Oxford and Earl Mortimer.