A long shot replying to posts from 2011 but worth a try...
Recently I've been researching the George Hunter from Kirkcaldy who (possibly/probably?) married 1st Catherine Aitken and 2nd Mary Dow.
I have DNA matches that go back to George and Catherine's children. My unproven theory as yet, is that Catherine Aitken was the daughter of John Aitken and Mary Illson, and John Aitken is the brother of my ancestor Janet Aitken (daughter of James Aitken and Janet Brown) who married William Gibson.
Hopefully someone is out there still who may know about this

Marlene