Hello Bruce McDowall My earliest known Dill ancestor was John Dill who was recorded 1665 on the Hearth Money Roll in Ireland. I do not believe that my Dill ancestors were originally from Ireland. The surname of Dill did not exist in Ireland before the 17th century. The surname of Dill was brought to Ireland during the Ulster Plantation. My y-dna is R-M222. This y-dna is mostly found in Ireland and Lowland Scotland. There were a lot of Dill and McDill recorded in Kirkcudbrightshire on the early censuses. I believe my Dill ancestors were originally from SW Scotland. Lawrence Dill