The 'Dublin Jack of All Trades' in the DT is #40 in Colm O Lochlainn's 'Irish Street Ballads'. He noted that he had it from Dublin ballad singers about 1912. He indicated the source of the words as from printed ballad sheets. I recall that the Critics group did a London Jack of All Trades on their 'Sweet Thames Flow Softly', an old Argo album from the 1960s that I no longer have. I believe that also was from a broadside. Bruce O probably has heaps of information on these.

Stewie.