It's not Derbyshire but down here in Devon all of the villages around the town of Holsworthy appear under Holsworthy RD in the 1939 Registration but once you find a village grouping then all the people appear together. I think the same happens around Ashbourne but not sure, so could this be the same for South Wingfield bearing in mind the purpose of the Registration? As long as everyone was swept up, such details were not very relevant at the time I would have thought. Meg Galley-Taylor