Harpgirl, congrats on your fine achievement. Makes us lesser mortals aspire to even greater things.

Australia has a proud but brief history with riverboats, the trade largely fading once the railways arrived (as I recall). Quite a number of cities and towns along the Murray River in Victoria and South Australia owe their roots to the flourishing river trade in the 19'th century. There's certainly a ton of folf-lore, but only a smallish number of songs that I can recall. It's been a long time since I've read up on this stuff, but I'm sure that many weel read Aussies will contribute to this thread - assuming that you are interested.

Regards
John