I'm not sure if you have seen the previous posting by Mary dated 29th October 2013. This is the same person as you are looking for information on.
Mary may be a relative of yours?
Have a good read of it as you should either front up at the Victorian Public Records Office and ask for a printout of your Great Grandfathers Will.
Mary was able to find plenty of answers after reading the 26 pages relating to the beneficiaries of the Will of your Great Grandfather.
The eldest daughter Georgina( married name Eltringham )was one of 5 named as beneficiaries of the will.
At the time I had trouble trying to sort out Robert John from George only to find they were the same person.
The Will explains everything.
Ian Wills ( Melbourne )