Hi from Donnybrook in West Australia. I am currently following my wifes family tree back and there is a link to Margaret Cavanough and Laurence Adolphus Jacob. They had a son Joseph Henry Jacob who migrated to Australia. he dropped the Jacob surname and adopted the surname Hudson. He was born in Boston, August 24 1849 and died in Queensland at a place called Charters Towers in 1923. Interesting to see your note that Margaret remarried in 1851, less than two years after the birth of Joseph.