Hi,
Does the death certificate for Thomas Carl Jones in 1987 give any clues as to his wife's whereabouts? Was he a widower, who registered his death?
Assuming she died earlier a potential maybe - Mary F Jones Age 40 Dec Quarter 1951 East Ham Vol 5a page 26. Or is it possible her death could have been registered with the surname Watson - Mary F Watson Age 55 March Quarter 1967 Birmingham Vol 9c Page 346
Both a bit of a long shot I'm afraid.
Alan