As I suggested to you elsewhere looking at the actual marriage entry might throw up additional information (maybe some kind sould would do this for you) as would any BMD entry in the newspaper - if her mother owned property on the Island then this is easy to trace - however most come-overs rented property but there was often a sale of furniture etc on departure that would be advertised - again this would probably be found in the card index to the Manx newspapers - try enquiries@mnh.gov.im