Just a note. Luke Kelly turned up at a folk club I was at in St Albans in the early 60s. he sang a few songs, one of which was 'A Ballad of Master MgGrath'. At the conclusion of his singing he held up a book, which was 'Irish Street Ballads' published by Colm O Lochlainn in Dublin, and told the audience that it was one of the main sources for his songs. The last line of the song (as in the book was 'Three cheers for old Ireland says Master MgGrath'. i heard the other version later.