I was not familiar with that story either. How horrible. Guess the dignitaries had absolute trust in glider technology. Sad...

According to what I have read a test flight of this same glider had been made prior to the incident with the Robertsons owner's son riding aboard. I suppose it was thought to be reasonably safe.

I had heard of the coffin maker making gliders (or at least parts). Here is an interesting article on the subject of gliders with another Vet's remembrances.

 

https://www.asme.org/engineering-topics/articles/aerospace-defense/the-flying-coffins-of-world-war-ii

Yes, most interesting thanks for posting the link. The "G" stood for Guts, I like that, most appropriate,