my COWLE family tree rises in Lezayre with the name Cowell, my grandfather was William Cowell who changed in 1912 from Cowle. My ancestors originated in Ballaugh and go back to 1605 to Jon Cowle. there are William Cowle namesbu I would have to search my tree. There is a Casement somewhere back there in Ballaugh, but once again I would need to have time to look it up. Keep in touch.
cheers, Peter.