I am interested in your Edward Keane. There don't seem to be many Edward's in the early 1800's. I have a Thomas Keane born somewhere in County Mayo in 1819. By early 1840's he was living in Westport, County Mayo and had married an Ellen Walsh. His father was supposedly an Edward Keane, born circa 1780. No information on Edward's spouse or any other children besides Thomas. So it's possible that Thomas could have had a brother who fathered your Edward.