« Reply #200 on: Wednesday 30 December 15 20:07 GMT (UK) »
Well I've solved the mystery as to who the third closed person was with my grandparents on the 1939 Register, there wasn't one.

FindMyPast appear to have attached a closed entry from either house adjoining them to my grandparents but the original image (having given in and obtained it for half price credits) shows clearly there are only two closed people in the house with them.

So anyone wondering where a "closed" person is on the index, its quite likely FindMyPast have indexed them with the wrong household.

(KENT) Lingwell, Rayment (BUCKS) Read, Hutchins (SRY) Costin, Westbrook (DOR) Gibbs, Goreing (DUR) Green (ESX) Rudland, Malden, Rouse, Boosey (FIFE) Foulis, Russell (NFK) Johnson, Farthing, Purdy, Barsham (GLOS) Collett, Morris, Freebury, May, Kirkman (HERTS) Winchester, Linford (NORTHANTS) Bird, Brimley, Chater, Wilford, Read, Chapman, Jeys, Marston, Lumley (WILTS) Arden, Whatley, Batson, Gleed, Greenhill (SOM) Coombs, Watkins (RUT) Stafford (BERKS) Sansom, Angel, Young, Stratton, Weeks, Day