I first met John 12+ years ago when I bought a precision level from him, and again shortly afterwards when I bought a universal dividing head. That was when he was in the original house, with workshop buildings alongside. In the intervening years we've exchanged forum posts, PMs and emails, mainly on gear design, Gearotic (although I never did manage to get it running properly) and Mach3 and it's foibles. When the Myford fire sale took place he kindly contacted me and asked if I would be interested in any cylindrical grinder parts, if available. Sadly they weren't as the grinders had been out of production for too long.
I don't know if he learnt anything from me, probably not, but I certainly learnt a lot from him.
Gone, but not forgotten, as I'll remember every time I use the dividing head.
Andrew