Good point, Pooka.......Clancy (Liam, father), O'Connell (Robbie, nephew), and Clancy (Donal, son) is also a semi-regular performing group.
Also, add Bobby's son, Finbar (maybe 2 r's) to that list. Fits the shoes well.
For that matter, Tommy's sons (the Makem brothers), are also great to see.
Let's hope it goes on forever.