My wife is Manx. Sarah Bell was her Great, Great, Great Grandmother. Your trees divided when George remarried - he had a lot of children did he not! You will know that the Greggors came from Stetin in Prussia and carried on being Coopers for many years. We may still find a wedding for Sarah and George in the IoM but I feel that Whitehaven is more likely. If you would like the tree from Sarah to my wife do send me your email address. Best wishes David