OK, so let's take a look at all this. Here are the common verses:

• American hash/scouse
  
• Garret/furled the window blind
  
• wife/water
  
• length of rope/crossed the line
  
• bullock's horn/round the horn

Those are the five verses that all the versions seem to have in common. The two others that stand out are the one about finding northwest, and then there's one verse in the DT that doesn't seem to fit anywhere or appear in other versions:

To every two men that graduates, I'll give one outfit free,
For two good men on watch at once, ye never need to see,
Oilskins, me boys, ye'll never want, carpet slippers made of felt,
I'll dish out to the pair o' you, and a rope yarn for a belt.

Anybody know the source of these two verses?

-Joe-