There's a cover of it on this site by Ray McAreavey..

It tells us a little.

"WOODLANDS OF LOUGHGLYNN
ÒA noble Irishman was he, Sean Bergin was his name
He belonged to Tipperary, from Nenagh Town he came.
McDermott too was brave and true, from the plains of Ballinagare
He is missed from many a fireside, in the homes both near and farÓ.

On a fine spring morning in April 1921, death came swiftly and violently to Sean Bergin and his comrade Stephen McDermott in the woodlands of Loughglynn. Taken prisoner by the ÒBlack and TansÓ after a fierce gun battle, they were brutally beaten and then shot. This ballad is as well known today as when first composed shortly after their deaths."