Oxford University, Trinity College Dublin and Queens University have published the Y-DNA results for Niall of the Nine Hostages [450 AD] and his descendants. I was wondering if it would serve any purpose to form a list for these people who have done their DNA with these Universities and of course with the folks at Family Tree ?? The eldest son of Niall was Eoghan and those descended from him are referred to as Eoghannaigh. From Niall this would include MacLochlainn, the O'Connors and O'Bryans just to name a few. Sort of a family re-union. Eric