1851 census gives me IOM Rushen: Henry born Arbory, Margaret born Rushen, Edward born Rushen, William and John both born Rushen.

I haven't got death certs for either of them, but can't even get a record of Edwards death from Ancestory. There is a possibility that Henry died at the age of 67. I can trace him to 1881 census where he has his grandson Samuel Gale living with him.

Edward had 2 daughters called Margaret Ann Gale Gawne born in Aberdeen and Rose Ann Ford Gawne born in Liverpool.

I don't know if that helps.
Jackie.