Thank you again Jackie, following your previous message I looked at the Trove website but wasn't quite sure where to begin, I will try again tomorrow. I also tried to find the wills but failed and left them a message asking for help. I am new to the overseas part of family research and it all looks a bit difficult but I'm sure I will get the hang of it and it makes me very grateful for your help or I wouldn't have got this far.
As with all of these things, I am sure there is a logical answer to this puzzle but I can't work it out yet. I am seeing some cousins next week and want to dazzle them with my research!