HEre are some of the threads, including the one Hrothgar mentionsOriginal Waltzing MAtilda Banjo PAtterson - Waltzing Matilda Bonnie Woods of Craigilea - Waltzing MAtilda Rochester Recruiting Sergeant - New Song uses same tune
Original Waltzing MAtilda Banjo PAtterson - Waltzing Matilda Bonnie Woods of Craigilea - Waltzing MAtilda Rochester Recruiting Sergeant - New Song uses same tune