Darren,
That's great that your great uncle is on the photo!
I got it from a nephew from Tpr. Slimmon who can be seen on the right of the photo.
The good news is that there are more photo's from 15th Troop.
They were involved in the liberation of Nieuwpoort and Dudzele in Belgium on 7 and 12 September 1944.
Here are the ones from Nieuwpoort.
They are on-line also.
https://devierboete6hs.wordpress.com...dinge-project/
Marco