I am trying to pin down the locations of G Battery 5 RHA when they moved to Essex (Chelmsford Area)in 1940 when they manned the GHQ line. I have mentions of Chelmsford Drill Hall .Writtle, Great Dunmow , Little Easton ,Little Waltham and Springfield from War Diaries but nothing more specific ,searches of village websites have been non productive. Hylands House and Park at Writtle near Chelmsford was the centre of much military activity, is there a list of Units based there? Their Website only mentions SAS HQ. There are still many pill boxes that formed the GHQ line still in tact,5 RHA,HQ mentions it had 21 priority positions to man between Saffron Walden and Wickford .even before the pill boxes were built ( About 40 K as the crow flies.! ) I realise that the info I have is about as much as I will get as security at that time would discourage mention of troop movements but any pointers would be much appreciated.