The chap in the chip-bag hat, standing with arms folded behind the camera is Donald Pearson, an old friend of mine who's sadly missed. Donald flew Vildebeests as a Flt Lt at Singapore in 1941 before being promoted to Sqn Ldr and put in charge of the OTU that used ex-21 Sqn RAAF Wirraways to help prepare pilots to fly the Buffalo. He was in that role when the Japanese attacked Malaya but, due to his rank and lack of airframes he wasn't able to fly operations. Trying every wrangle to get on ops, he eventually joined 4 PRU flying the locally-converted PR Buffalos...but he had to drop back to Flt Lt to do it. He flew out of Singapore on 7 Feb 1942 and escaped to India where he later flew PR Hurricanes and Spitfires over Burma, ultimately going on to lead 681 Sqn flying PR Spitfires, initially MkXI and finally MkXIX.