What about the kinds of forms used at that time? Does the Bomford doc look like similar AU contemporaneous forms?
A good question and I cannot answer it unfortunately. I did track down "lost relatives" when my Dad's family broke up in London in 1920. Some descendents live in Mildura, South Australia. If this keeps up, I will have to send them more than my annual Christmas card.
Whatever happens, this has to be resolved.
I trust you will have seen the post on FR at 9;59 am Est. If not, there is a wealth of information and a variety of examples- I am indebted to the poster in this instance. I could never have come up with that amount of documentation.