As far as I know, there are two more verses.

One is like below and comes between the first and the second verses.

A motor car was dashing through the early morning gloom.
A sudden crash and in the stream they went to meet their doom.
Two Irish lads lay dying there just like their hopes so grand.
They could not give the signal now from lonely Banna Strand.

And another one comes somewhere after the third verse. The lyrics are:

They sailed for Queenstown Harbour. Said the Germans, "We're undone;
The British are our masters, man for man and gun for gun.
We've twenty thousand rifles here, but they never will reach land.
We'll sink them all and bid farewell to lonely Banna Strand."

Regards

Teru

HTML line breaks added in place of double spacing. --JoeClone, 5-Jul-02.