That's a very interesting article, pf, but I'm not sure about the dates. As far as I know, Lionel Van Praag, for example, was not one of the very early Australian arrivals in this country. He came over in 1931 when the sport was fairly well established. Bluey Wilkinson was earlier, but not one of the earliest. 1929 I believe was his first year in this country.
Still, some good stuff and you must be excited to find your father was one of the pioneers.