Que Pee
Lots of comment on your photos - except for the Bulldog! To put that straight I flew this aircraft XX513 a few times in 1975-76 as it was coded 01 of Southampton UAS.
We were based at Hamble (RIP) with a Headquarters & Mess in Southampton, but in 1975 our Parent Unit was Thorney. The Bulldogs often visited there hence your photo.
It very likely indeed that the pilot in your photo was the CO - Keith Jarvis.
We held out Annual Dinner in 1975 at Thorney Officers Mess but soon after (not related!) the parent unit changed to RAF SC Bracknell. Believe it is now Boscombe.
Any ex SUAS folk from the 70's out there in Ppruneland?