I'm not sure you have the right Edward when you say he married in 1814.
There is another Edward Ashwin who married Elizabeth Wells 1823 Church Honeybourne which is 2 mls. from South Littleton.Although there are 2 children prior to this she seems a bit young to have married 1814 so it may be worth considering.
There is a birth registered for Edward Ashwin 1802 Church Honeybourne.
You will need to see the death entry for any more info. on Edward,son of,wife of etc.
You will also need to see their marriage in case another family member was witness.
Edit:OK it may be her after all,can't find an Elizabeth Wells b. Worcs. but there is an Elizabeth Wheeler b. Himbleton c.1795 which is about 4 mls. from Wick.
jim