LPW sings this song in the final chapter of NINE:

'The animals went in two by two,' sang Wimsey, as he sped through the twilight, 'the elephant and the kangaroo. Hurrah!'

Now I can't read these words without hearing the song whose first verse is:

 The animals went in two by two, hurrah, hurrah!
 The animals went in two by two, hurrah, hurrah!
 The animals went in two by two,
    the elephant and the kangaroo,
 And they all went into the ark,
   for to get out of the rain.

which is sung to a tune similar to 'the Runaway Train' or 'Johnny Comes Marching Home Again'
   http://songs-with-music.freeservers.com/Noah3.html with music.

And I was surprised because I didn't think this children's song would be old enough to be known by LPW (or DLS!) in the 1930s. So I looked it up in the LPW Companion.

And there (p43 of the 2nd ed) Lord Mountweazle gives an entirely different song -- a version of 'One More River to Cross' with which I am not familiar IIRC, and although it's similar-ish, it doesn't scan the same and won't fit that tune.

Can anyone shed any light on this? Google returns no authorship info for the song I quote, and I wonder when it might have been composed. What about the song 'Johnny comes marching home again' -- what military campaign does this refer to? WW1? The Boer War? Perhaps even the American Civil War?. AH yes, Googling tells me this is US Civil War, 1863. http://www.niehs.nih.gov/kids/lyrics/johnny.htm . So when did the Noah's Ark version come along, I wonder?

Is this some lacuna on the part of the LPWC (perish the thought)? Or is there some connection between the songs? Looking at the words of 'There's One More River to Cross' http://www.acousticmusic.com/staines/onemorer.htm it looks to me as if the words have been adapted to fit the 'Johnny' tune.

simon