The Argo version is not as good as the Redpath one. I got hers from her own lips in Vancouver 30 years ago, with an extra verse:

When I was young and in my prime

I used to wee wee all the time,

Now that I am getting grey

I scarce can manage twice a day.

Versions of the first 2 stanzas [somewhat garbled] are in Harry Morgan, "More Rugby Songs" (London: Sphere, 1968); for all I know, they might be to a different tune.