Thanks all who replied. It appears there are two possible locations: Skreen, Co. Meath, and Ballinascreen, Co. Derry. I'm surmising here, and welcome corrections, but the word "Braes" could be Scots and, with the known Scots influences in Northeast Ireland, the Co. Derry town could be the more likely one.
I'll have to look for Mick Hanly's and the Corries' versions; I'm familiar with the one Steve Tilston sings on the John Renbourn Band's "Ship of Fools" LP (one of the most brilliant albums ever).
Again, thanks for the help.
Michael