Andi:

The GovernmentRams, whoever they are do not own The Parting Glass. At best they own a copyright on their arrangement and/or any changes they made in the text from the traditional text. You are not interested, as I gather, in the music, but just the words, right?

Go to the DT, HERE. If the words you want to use are in the version in the DT, you can use them with impunity.

Dave Oesterreich