One reason why I am interested in this is that in an 1871 census for one of my maternal ancestors, there is a grand daughter shown as living in the house by the name of Livinia Dosy. I have been unable to track down any other Dosys, even her parents and she had either died by 1881 thus apparently making the name extinct, or the census enumerator was 'in his cups' and not overly bothered about the accuracy of the name of the last member of the household.
I have no great need (or even desire, at this point) to research the family Livinia - there are far too many direct ancestors to hunt, but who knows, one day I might get round to it.