This is Paddy Drury's version, from the "Shannonside Annual", 1960. As far as I can ascertain, it was never written down by PD, or rather, never published. This version is based on the memory of Jerry Histon, presumably a local man. The verses are a bit jumbled but here they are anyway.

May the Lord have mercy on those youths,
Their hearts were loyal and pure,
That were caught and shot in that lonely spot,
The Fort near Knockanure.

From the tyrants and their bloody crew,
No mercy could they find,
But God consoled their weeping friends,
In their sorrow left behind.

There was Jerry Lyons from Duagh,
Pat Dalton from Athea,
Paddy Walsh from Ballydonohue,
And Con Dee, who got away.

Over hill and dale, Con gave leg bail,
While the bullets pierced the ground,
They jumped the streams at the Bog Lane,
And blinked the Devil's hounds.

Then the mountainside, he slow did stride,
Though wounded then and sore,
And he shed a tear for his comrades dear,
Who were dying in their gore.

Those martys bold, now dead and cold,
To the lorries were thrown in,
And in Listowel the tyrants told,
They were ambushed in that glen.

We have two more whom we sad deplore,
That in our Parish fell,
Mick Galvin and Jack Sheehan,
In Heaven now they dwell.

Accurate in detail. Dublin Castle sent out a press release that HMG forces had been attacked by "100 rebels". Untrue: totally, utterly and completely. Before they were shot, the men were in fact thrown into B & T lorries and driven a mile towards Athea. Unsure as to what to do, they then turned back to
Gortaglanna, and shot the men.                                       

Galvin and Sheehan were killed in the War in separate incidents (Sheehan very close to where the Knockanure men died, half a mile).

Re Knockanure, the Tans were "in a bad mood", angered at the murder, three weeks previously, of Sir Arthur Vicars, of "Irish Crown Jewels" infamy, who, incongrously as it may seem, lived in a Big House in Knockanure. Look it up!