We have a family history that traces our Campbell ancestors to the 1680s when they emigrated from Scotland to County Down, Ireland. The history continues to the 1840s when the Campbells emigrated from County Down to Pennsylvania and eventually connected with the Kennedys.
However, we don't have too much about the Kennedys. The first records we have of the Kennedys is that they emigrated from Londonderry, Ireland to PA sometime around 1817-1821. The first known Kennedy was Samuel Kennedy who married Jane Gilfillian. We don't have dates of births or marriage for them. We don't have names for parents or siblings. The children they had who were born in Ireland were: Achsah, Samuel, John, Joseph, and Elizabeth. Other children were born in PA. While the Campbells frequently used the names Robert and William, it is possible that the Kennedys may have frequently used the names Samuel and David.
In your research in the cemetary records in Londonderry, do you have any Kennedys who could be relatives to David Kennedy? We believe that our Kennedys are Scottish rather than Irish. Any information would be greatly appreciated.