Gentlemen,
Having spoken to Chumpy off-board, and seen other photos in his collection, I can confirm the photo is of Upavon, taken very early in 1938 – I found a similar (dated) photo in the National Archives with exactly the same aircraft configuration as in one of Chumpy’s photos.
The photo was taken shortly before work started on improving and developing the camp’s facilities. This included a ‘C’ type hanger which was built just to the east of the ‘A’ type in Chumpy’s photo; the hanger was completed in April 1939.
The only unit in residence was the CFS, which equipped with Tutors, Furys, Harts and Ansons, although replacement of the latter with Oxfords began in November 1937. (Source: ‘Wings over Wiltshire’ by Rod Priddle (2003)).
Brian