Quote Originally Posted by MacMillan of Rathdown View Post
Cleghorn, if memory serves me, is a place in Lanarkshire. If this is the source of the name I'm foxed to see how it could be part of clan Stewart.
Correct.

There is an interesting article entitled 'The Romantic Myth of Scottish Clan Septs' here:
http://www.scotshistoryonline.co.uk/...lan-septs.html