G'day,That last verse sounds suspiciously like it could have come from the original poem, published in a Queensland paper, 1 January 1944 (after the Battle of the Coral Sea had been won and victory celebrations consumed every drop of rationed beer) by Paddy Sheahan.
The song is just a quick re-edit and reduction by Gordon Parsons, who then pinched half of Stephen Foster's Beautiful Dreamer for a tune.
I'll dig out the original 1944 words (published back in the 1960s in Singabout magazine and probably in my anthology Singabout - Selected Reprints)and you can mine them for extra verses.
Regards,
Bob Bolton