Hi Yvonne

If Thomas was married around 1767 he was possibly born approx 20 years previous to that. If so, on the IGI there is a Thomas born to a Gilbert Key. Gilberts wife is possibly Cath. Killey or Clague who died around 1772. Have a look on Brian Lawsons site at the "Will" section, I have put several Wills for the Keys in the Patrick area.

Christine Kaye