Hi 'Harper',Thank you for 'noticing' my post. I'd begun to feel I was being ignored---either because no-one wanted to confront the problem or because I was incredibly stupid not to have found the 'evidence'. First of all, there seems, in some posts, to be a bit of misunderstanding about the 'EARLS'of Arran. Lord James I Hamilton, who married(1516) Janet Beaton/Petun, was not an Earl. Their son and heir: Lord James II Hamilton was the 1st Earl of Arran--and so on.Their daughter Margaret H married a Douglas. Like you, I can find no source for 'my' Margaret Hamilton ( b. 1565)who married Sir Alexander Pethein. The 'Weir' post that you suggested, made some claims that I have a problem with. Will post further.