Carole,
The info re Willoughby Williams and Elizabeth came from her nephew who did a lot of research on his family which included the Earleys of this generation. It was he who wrote in a book on his relative who married into this family ( private publication) about Elizabeth's marriage and taking up residence in a country mansion in Devon. My own mother believed that her aunt had married someone with surname of Wetherby Williams while this nephew thought it was Willoughby Williams. I understand that they had 3 children including names Margaret and Nancy. The approximate marriage date was based on info from this private publication.
It's an impossible task I know with so little positive info.
Annie