Lighter, Canadian versions that I have heard, and those verses printed in the Canadian "Songs From the Front and Rear" don't mention the German officers, but some verses mention the foibles and privileges of Canadian officers and non-coms (see version posted by Joe Offer early in this thread).

It seems that the earliest versions mention Skiboo or Taboo but not Hinky (is Inky a product of rugby fans and children?).

There are several Skiboos. Anyone know anything about the Northern Ireland mythical shipyard worker?- the only one that seems likely unless the farmer Skiboo tales are older than the current children's book.
1. Children's stories about Farmer Skiboo. Waddell and Fletcher. These seem to be current. Oxford Press. 2. Mythical shipyard worker in Northern Ireland. See Sam Hanna Bell, "Erin's Orange Lily," a book on Northern Ireland Culture. 3. Skibo Castle in Sutherland. From Schytherbole, Celtic for a place of peace. Once owned by Andrew Carnegie. Not worth considering are 4. Name for a group of skin diseases. 5. Computer programs, etc.

And the verse from "Jones' Ale"-

Chorus:
Wnen the landlord's daughter, she came in,
And we kissed those rosy cheeks again;
We all sat down and then we'd sing:
When Jones' Ale was new, me boys,
When Jones' Ale was new.

Supposedly based on the old (1815 thereabouts) German song, "The Landlord's Daughter," which I cannot find. The author, Uhland, was a German romantic. This song is mentioned in a thread here somewhere, without lyrics or information. It is mentioned as a possible precursor of the "Mademoiselle..."

Maybe Wolfgang can find the german song.