50 ERFTS – Booker

Hi

Further to my request in a previous post regarding William Herbert Wetton I wonder whether someone maybe able to supply any information on 50 ERFTS which was supposed to be civilian run by Wetton Aviation Ltd at Booker from April to September 1939. I believe that the airfield was not operational until 1941 well after 50 ERFTS had if ever existed at the airfield. The following aircraft have been listed as being allocated to 50 ERFTS Tiger Moths N6640 & N6645, Audax K3083 & K5129 and Hinds K6635 & K6637 plus also I believe an Avro Anson although I have no identity for that if anyone knows one?. Did 50 ERFTS actually ever exist, I know that a lot of ERFTS never made it to active status before the war began was this the case with this one?. I have seen it mentioned elsewhere 50 ERFTS listed as being at Barton and Ringway. Any information welcomed.

Thanks