Quigley's

Looking for Martin Quigley, b. 1757 in Ireland, d. 1852 in Portland, New York.  Supposedly left Ireland early in his life.  Could have had a brother, John, b. 1767.  Even with the new Irish records that were just released, there is no mention of them.  Help!!  We're planning a trip in May to Ireland and would to love to learn more.