It certainly was Russell Whyham who had the Drover. His hangar was an "Aladdin's cave" of oddities including a GA Cygnet, various Avro19s and an Aermacchi something or other (AL60?). I was regularly chased out his hangar despite being at school with his other son Chris. I believe he met an untimely end crashing in to a sewage farm in an early Beagle Pup.