complete correction/additions to Wolfgang's version, (scribbled on a napkin during a shanty-sing, and my penmanship stinks) but the best I could make out was:

Verse 2.
St. Patrick was a Roman sailor,
All down...
He had a pater and a mater,

Verse 3.
Last line: They shipped us out aboard the Blackball..

Verse 5.
They say that Jim was a mate for Hell, boys,
All down...
With fists of iron and feet as well, boys,
It's fearful how yes he does roar, boys
"Ya lay-a-lot mick, ya son-of-a-whore" boys