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McCorley's role in the 1798 rebellion itself is unrecorded. In a poem written 100 years after the rebellion by Ethna Carbery called "Roddy McCorley", written in the 1890s in which it is claimed he was one of the leaders of the United Irishmen at the Battle of Antrim. Carbery's ballad was re-popularised (without attribution) by The Clancy Brothers and Tommy Makem, The Dubliners, The Kingston Trio, and others during the folk music revival of the 1960s. - from wikipedia
Tommy Makem does this capo 1

Roddy McCorley

by Ethna Carbery
O [D] see the fleet-foot host of men,
who [G] march with faces [D] drawn,
From farmstead and from [G] fishers' [D] cot,
a- [E7] long the [Em] banks of [A7] Ban;
They [D] come with vengeance [G] in their [D] eyes.
Too [E7] late! Too [Em] late are [A7] they,
For young [D] Roddy McCorley goes to die
on the [G] bridge of Toome to [D] day.

Oh Ireland, Mother Ireland, you love them still the best
The fearless brave who fighting fall upon your hapless breast,
But never a one of all your dead more bravely fell in fray,
Than he who marches to his fate on the bridge of Toome today.

Up the narrow street he stepped, so smiling, proud and young.
About the hemp-rope on his neck, the golden ringlets clung;
There's ne'er a tear in his blue eyes, fearless and brave are they,
As young Roddy McCorley goes to die on the bridge of Toome today.

When last this narrow street he trod, his shining pike in hand
Behind him marched, in grim array, a earnest stalwart band.
To Antrim town! To Antrim town, he led them to the fray,
But young Roddy McCorley goes to die on the bridge of Toome today.

The grey coat and its sash of green were brave and stainless then,
A banner flashed beneath the sun over the marching men;
The coat hath many a rent this noon, the sash is torn away,
And Roddy McCorley goes to die on the bridge of Toome today.

Oh, how his pike flashed in the sun! Then found a foeman's heart,
Through furious fight, and heavy odds he bore a true man's part
And many a red-coat bit the dust before his keen pike-play,
But Roddy McCorley goes to die on the bridge of Toome today.

There's never a one of all your dead more bravely died in fray
Than he who marches to his fate in Toomebridge town today;
True to the last! True to the last, he treads the upwards way,
And young Roddy McCorley goes to die on the bridge of Toome today.