I've pulled out my old data on the Corrin family and find I have profile sheets on John and Anne Cowle as well as others back to 1650 if the data holds up. I think there is enough Wills available for you to trace back you tree to that time. You can email me at "wally_corrin@telus.net" so I can send the data to you rather than use the bulletin board for it.
Wally