I might be years late to the party but here is my info. My 2 x Great Grandmother was Elizabeth Cummins, spelt Kimmons on her son's birth certificate. (1838) She was born around 1818, she married John Smyth in Ballykelly and it is noted that she came from Tully Townland. She had at least two boys, John and James (have DNA links to the James line) I think her Father was Samuel, but that is because I was contacted by a Grandson of the Sammy that was born in 1900. He was raised in Limavady, son of Kenneth Cummins. The complication here is that I am also related to Sammy's Mother, so our DNA match could potentially be to the Holmes side and not the Cummins. I am assuming that my Cummins are the Magilligan branch because my dominant matches are to the McCurrys of Myroe who were fisherfolk in between Magilliagn and Moville. The Gedmatch No for my Mum, who is 94 and still kicking, is A340760.