I'm trying to help a 101 squadron veteran

I am writing to ask for help in fulfilling the wish of a war hero from RAF 101 Lancaster squadron .
Recently I watched the 80th anniversary flight of the Spitfire from Southampton airport .
Living local to the Solent it seemed a great opportunity to try my new zoom lens out .
After taking a few photos and feeling happy for seeing the iconic aircraft manoeuvring up and down Southampton water I thought I’d head home and look at the pictures .
I was just about to turn and leave when I heard an elderly gent that I didn’t realise was standing next to me make comment ” what are you going to do with that ? , Shoot the bloody thing down ? ” referring to the 300 mm lens attached to my camera . It brought a smile to my face to look down and see this elderly gent standing next to me with a smile on his face , I replied ” no I’m only taking a few pictures “
He looked at me and said ” you should be taking pictures of Lancasters son , that’s what I flew in during the war ” , I was not sure what to make of him at first as he didn’t quite look old enough to have done such a thing ” really ” I replied , ” tell me more ” , with this he continued to tell me about his time as a radio operator with 101 squadron , he looked at me and said ” you don’t believe me do you ? , come with me to my car ” , I was surprised to see that he had driven himself to the marina that I was viewing the spitfire from . He opened the drivers door and took out a passport with photographs inside of his time in the war . He then told me things about his time with the squadron and the missions that they flew .
” it’s not that I don’t believe you sir ” , I said ” I’m actually quite taken aback to be listening to your story “
He continued to tell me how in previous years he had attended the 101 squadron reunions , but last year his wife of 68 years had passed away and he feels it’s now too far for him to drive alone , he continued to describe the reunions and how in the 1980’s he had been at a reunion in Ludford Magna , where he saw a picture on the wall of 101 squadron , just the crew members , as he remembers approximately 70-80 airmen gathered from the wing towards the rear of the aircraft, with the code letters SR on the side of the aircraft , he recognised himself in the picture , and he recalled the picture being taken in the years 1945-1946 .
The following year the picture was missing from the reunion , and from that day he has wondered where the picture had gone , it was the only picture that he can recall of seeing with just the aircrew in the picture .
Well after describing this to me he looked at me and said , ” I’m not up to all this internet stuff , could you possibly do something for me ? , it would absolutely make my day if I could see this picture , or a copy of it again ” .
After meeting this man and listening to a short description of his RAF career , and seeing how humble he is about being a war hero that lost many friends , and hearing him say that he thought he was about to lose his own life on more than one occasion , how could I not offer to help find his picture ? , he gave me his details and looked at me and said ” it would mean the world to me if you could just look for me , and now son you are holding me up with my morning walk , and I cannot stand around talking to you all day ” this was said with the same wit that he had shown during our chat , and off he went smiling at me as he walked away .
I stood for a while smiling and thinking ” did this just happen ? ” . It’s not every day a war hero approaches you and catches your attention the way he did , and leaves you thinking how special these men are and were .
If you know of anywhere that I could search for this picture , or any websites that I could look , I would be very grateful ,
Regards , Brian