Two comments: 1) Are you aware of an Ephraim Abraham, who was in Charleston as of 1774, died there around 1780, and his brother Jacob came there from Lissa/Leszno, Poland by 1790 (SC Census), having established that he was Ephraim's heir in a suit contested by Jacob I. Cohen of Richmond through a Jewish court (Bet Din)?(See Wolf/Whiteman's history of the Jews of Philadelphia)I don't know whether he had any descendants.
2) Also, I am researching a man named Jacob Abrahams, a convict from London in 1771, who settled in Norfolk and then Richmond, Virginia, around 1790. He married Deborah Mordecai (daughter of Mordecai Mordecai) and they had Wilcher, Simon, and Zipporah Abrams. Their descendants include persons with the Gentry surname as well as Netherwood and Hovan and Abrams.I am interested in any genealogical info about these families.In fact, I am also interested in finding out more about this Jacob Abrahams, who is alleged to have stolen a free negro girl, Sally Valentine, of Norfolk, and sold her into slavery in Fayetteville, N.C.