I wish I had seen your posting earlier! I am Andrew Eliason, great grandson of Oliver Matthew Eliason (Ole Mathias Eliasen) (1847-1934) who came to Australia some time between 1867 and 1873. He was the eldest brother of your John.
I have been corresponding with David Crankshaw for many years, and met Mark Eliason in New York when my family and I visited there in 2013. I have already a copy of your Dad's war stories (very interesting because my uncle was a bomber pilot in Britain and another served in Palestine) and have seen the family history video he made.
One thing I would dearly like to know is whether any of the photos survive that were shown in the video, particularly the one of the old folk Elias and Karen.
I live in Canberra, Australia, and my email is friormon@gmail com. I'd be very pleased to hear from you.