The Cawthorne Jasper Capper in Nottingham is my uncle - we have his portrait on our wall here in New Zealand. He was born in 1844. His grand parents were Jasper Capper, who married Margaret Cawthorne, 20 September 1809. The family were london drapers and wool merchants. I believe the Cawthorne Capper who is buried in Macao is his (and therefore my) uncle. There was a much earlier marriage between a Mary Cawthorne and a John Capper (about 1710). I don't know if they are related.