I haven't researched this thoroughly enough; The Doughertys arrived in Andreas before 1600 (first will to be found is 1601). They almost certainly came from Inishowen. I just wondered, only wondered, if Balladaughan(y) could ever have been Balladaugherty. Some of the old writing I have seen could be confused. Someone who has researched land registers might have some idea. I shall have to find time to follow Frances' suggestion and go to the museum. Cheers, Susanne.