I remember Sandy at the R.J.A.A. in 1973 (In AMMAN . JORDAN) . He was one of aviations best ground instructors and that came across in his teaching.
He was the person that got me through my ground school subjects. Sandy had a natural ability when it came to teaching, combining it with wit and humour.
There really should be more like him and the world would be a more decent place.
Sincere regards and condolences to his family.