Samuel Mophet is my 6x great grandfather. He was born between 1700-1715 in Ayrshire, Ayr, Scotland. He married Martha McCully around 1735. They had 5 children: William, Thomas, John, Martha, Mary. (I descend from William -> William -> Thomas, etc)
I have Samuel d. 1765 and he and Martha are buried at Ballylig, Sherry Parish, Co.Antrim, Ireland.
His father is William Mophet b. about 1679, d. about 1710. Samuel also had a brother William (I have no further info on him). William Sr was also from Ayrshire.
William Sr's father was Samuel Mophet, also of Ayrshire, but I do have him passing in Ireland. I have no dates for him.
Hope this helps you some, I wish I had more info myself!