Diversion Field
I dont know if this will help.
In the winter and spring of 1947 I was a junior with KLM Air Traffic Div at Croydon Airport and during one period of poor vis. and ground fog there was a great bustle of activity with hasty gathering into brief cases of various aviation forms and documents and a mad scramble of KLM ground staff speeding off to Bovingdon - where incoming DAKs from Amsterdam were being diverted on account of the poor weather.