I found this on Warren Fahey's excellent Australian folklore site. It's the lyrics of a song based on the murder that have travelled all the way to Australia and were sung by Sally Sloane. Her recollections about the song:
"You know there are bits in it I can't remember where her body was tied up in a sack and mangled with many a dreadful wound. The cook, I think, mangled her up and put her in the bag. Her mother dreamt the same dream for three weeks and the neighbour with his pickaxe is part of it too. Anyhow they dug the ground and there they found where she was. "
Link to the lyrics
Link to information about Sally Sloane