Unfortunately Father Michael Hillery, his father Patrick (Pop) Hillery and Dr. Eleanor Hillery Ryan are all now deceased.Dr Eleanor died in March 1996. Dr. Eleanor Hillery Ryan's husband Bill Ryan still lives in their home in Leaguard, Miltown Malbay.Dr. Eleanor's brother, the former President Dr. Patrick Hillery who is now aged 81 is still very much alive and visits his old home beside Dr. Eleanor's house in Miltown fairly often.Unfortunately he does not have any information on his ancestors. Father Michael Hillery's brother Sean Hillery is living in Ennis, Co. Clare while his sister Margaret ( I dont know her married name lives in Dublin).I will endeavour to make contact for you. I's be delighted to get any additional information which you may have on the McMahon line.