Hi Cheryll,Rev. Samuel Black was born in 1700 in Ireland or Scotland, educated at Edinburgh Univ. and his father James, would have been too old (or dead)to have had a daughter born 53 years after his son was born, so I don't think they are the same family. The Blacks came to Ireland (Co Down)from Scotland where James was a wool merchant and from there came to America 1735, with 3 sons (grown). A bible entry of John Black, brother of Rev. Samuel as mentioned in Natalie Black's book confirms this. So, they must have been two different family groups. I have seen the German Black/Swartz before too. Hope this helps somewhat! Good luck!