Hello Colin,
My late father-in-law, George Stratford, served on 543 Sqn at Wyton, retiring in 1967. He spoke very little of his time on 543, but I wonder what he got up to on it. He was an AEO and I believe his captain was Flt Lt Pete Clark. George was a W/Op on Wellingtons and Lancs during WW2 being awarded the DFC as a Warrant Officer. After a break from the RAF, following demob in 1945, he rejoined the RAF as a Signaller on Shackletons. Following commissioning as an officer, he joined the V Force on Valiants, then Victors 1 and 2. He had a tankard which commemorated his achievement of being the first to reach 1000 hours on Victors, I believe.