My Great Great Grandfather David Wark married Margaret McClellan in Fermanagh County, Ireland. They had my great grandfather Robert and four other sons (William, John, James, and Thomas)there. They immigrated to Ontario, Canada in 1847 and had 4 more children (David, George, Jeremiah and Margaret). My Great Grandfather, Robert, married Mary Ann Deavitt in 1869 in Ontario, probably in Arran Township. They were Protestants. Hope this is informative and interesting. Good luck with your search! (I'm in Toronto.)