As has been alluded to in this thread, and mentioned in the linked threads, numerous parodies have arisen from Marion's song which, in Oz, are usually sung as rounds: I gather the sequence of verses from US sources are sung sequentially rather than just the original (or "first" verse) sung as a round.

In yesterday's Sydney Morning Herald there was some comment that Marion had donated the rights to an institution in South Australia, which had then transferred them to Larrikin but I don't recall the fine details.

The gist of my earlier post was paraphrasing my recollection of Warren Fahey's (Bodgie, for 'catters) public comments on the matter.

Cheers, Rowan