Hello,
I just came across your post.
I found your great grandfathers death:
Leon Vado
HUTCHINSON d 1936 aged 66 years Newcastle 2861/1936
If you got a copy of this Certificate from the New South
Wales Government it should tell you where he is buried.
Looks like his freind Edward died a bit later:
Edward BOX d 1949 Newcastle -parents Edward and Jane.
Regards
Alison