That's definitely the Paddy Tunney version, execpt for one inaccuracy, namely in the following verse it is treasue trove and not "treasure troth" :
"Oh Margaret, oh Lady Margaret," he said,
"For love or charity,
Will you give me back the treasure trove
That once, love, I gave thee, gave thee,
That once, love, I gave thee?"

P.S. The traveller singer Thomas McCarthy has a bewitching version of this song with the same air but small differences ine the text, and his own unique style of singing.