I don't see why we shouldn't have the whole song here.
Copied from http://ireland.dyn.dhs.org/Joe_Brady.html

JOE BRADY
by ?
collected by Brendan Behan

I am a bold undaunted youth, Joe Brady is my name,
From the chapel of North Anne Street one Sunday as I came,
All to my surprise who should I espy but Moreno and Cockade;
Says one unto the other: "Here comes our Fenian blade".

I did not know the reason why they ordered me to stand,
I did not know the reason why they gave me such a command.
But when I saw James Carey there, I knew I was betrayed.
I'll face death before dishonour and die a Fenian blade.

They marched me up North Anne Street without the least delay,
The people passed me on the path, it filled them with dismay.
My sister cried, "I see you Joe, if old Mallon gives me lave,
Keep up your heart for Ireland like a true-born Fenian Blade.

It happened in the Phoenix Park all in the month of May,
Lord Cavendish and Burke came out for to see the polo play.
James Carey gave the signal and his handkerchief he waved,
Then he gave full information against our Fenian blades.

It was in Kilmainham Prison the Invicibles were hung.
Mrs Kelly she stood there all in mourning for her son.
She threw back her shawl and said to all: "Though he fills a lime-pit grave,
My son was no informer and he died a Fenian blade."