Thanks, Joe.

The collation I sent you had the words as posted by John in Brisbane, above.

With regard to the two suggested amendments, it's a long time since I've heard it sung but my memory concurs with Bob the Postman's suggestion that
"Morella, Augathella, Brindabella, I'm the feller"
Is correct.

Having listed to the YouTube video linked by Joe I suspect there are at least a couple of discrepancies between text an audio but my brain isn't quite quick enough this afternoon.

Also
But as for the twice-mentioned "Tibooburra," what do I do?

The YouTube video has it twice so I suspect we go with that but I recall being a bit excited, when I first heard the song not long after it was first performed, that it mentioned Korumburra (pron. Kur'rumbur'ra); my father's family came from there. But I'll allow I might have created this as a memory.

Cheers, Rowan