Yes, Matt's then/now pictures are wonderful, not only those of Petworth shown here, but also all the other ones he's taken at different sites in Southern England.
I had a box of jumbled unlabeled pictures, which I could group only by the developer's roll number on the back of each image. This was identical for each picture in a roll, and was how pictures were identified when they were professionally developed then.
I used what I believed was the "Petworth" set to illustrate the period when the 203rd General Hospital was stationed there, but couldn't be positive the photos were taken in Petworth itself. Matthew has confirmed that, so take notice, Ben! We're going to be able to relabel all of those pictures, and to situate them accurately.