Not fully sure what you mean, MtheGM, about any other songs having their makers' names included; it might not be in the first line of the final verse, but in the Irish song "Priosun Cluain Meala" ("The Jail of Clonmel") the name of the condemned man who made words and probably music, O'Donnel, occurs. Similarly, Eamonn a Chnuic, or Edmund Ryan of the Hill, puts his own name into a song about his own outlawry (in the first verse, admittedly), late seventeenth century. I should think there are other examples, though I can't think of any off-hand.