Keith Durbidge was CFI at Highland Aero Club in Inverness 1978-1989 approx. They operated a Cessna 150/152 from Boyndie in the early 80s.
Ruth Wood (nee Mullineux) was one of his AFIs before moving on to BritWorld Viscounts at ABZ as I remember. I last heard her and Bill had retired to the west coast of Scotland.