The version by Bob Fox and Stu Luckley (on their 1996 CD "Box Of Gold") has an extra verse that goes as follows:

Now it's up at the dawn, with your sea-boots on
And down to Yarmouth Quay,
To fish Smith's Knoll, where the big seas roll
On the Northern Minch, on the Norway Deeps
And the banks and knolls of the North Sea Holes
Where the herring shoals are found.

They have it immediately before the verse about boilers full of steam.