Aussie eucalypt hardwoods came in several species apart from the mountain ash. Red Gum and Ironbark were used extensively for sleepers (ties) in the east of Australia. Jarrah was used for the same thing in Western Australia.
Turpentine was used extensively for pier or jetty construction. Its oil content made it marine borer resistant. A lot of the wharves in Sydney harbour, and I suspect a lot of other Aussie harbours are still sitting on their original turpentine piles that are well over 100 years old.
River gum was used for the hulls paddle-steamers that worked the inland Murray/Darling river systems. A lot of these steam boats were fuelled with Aussie hardwood as well.
That ought to do for a start...
Unanderra in oz