Before you chase up a possibly incorrect tree of the basis that Charlotte looks like the only Manx born that partially fits, it would be worthwile to consider what you do know - have you found them in the 1841 + 1851 census + later censuses (sometimes a birth town/parish is mentioned) - was any other possible family member with them; who were the witnesses to the marriage - does the age at burial correspond to census ages (not always that reliable)