I am convinced he was actually a Group Captain,but never mind.Having flown many times at his superb Air Shows in the 70s,I find it sad another from that era has gone.His PA was Janet Hoare as I remember,and have many fond memories of their hospitality,and parties-not to mention his gatherings of WW2 Pilots from both sides,with Douglas Bader and Bob Stanford Tuck holding forth with Pete Thorn taking the pxxs of Bader's pipe smoking.Great times and a sad reminder that those times are a long way back now with fewer and fewer colleagues still around.The demise of Biggin Hill airshows ,under the new management, must have hit him hard.RIP Jock.