yeah i know a lot about shaw - im his direct descendent. check out my website at http://www.gaskin-history.org/cattanach_tree.asphttp://www.gaskin-history.org/cattanach_tree.asp. I've got a fair bit of info on him (including a photo of his gravestone on the site.
a couple of things - you'll often found him spelt 'catanach'. He was a catholic - but somewhere along the line that I've followed catanach became cattanach. You might also find another shaw in contemporary records - I guess that this was his cousin but have no definite proof for that.
I'd be really interested in any information you have on shaw, or his anscestors, particularly John catanach (his dad) and elizabeth mitchell