I lived in Toomebridge for nearly 6 years as a boy. The story we heard was that Roddy's mother was a McErlean from Bellaghy and that Roddy was betrayed by a cousin, over a feud about some land. WE never heard anything about his father although he may or may not have ended up in Van Diemens Land. We heard he was a bit of a highwayman and was in trouble with the authrities before and after the 98 insurrection. WE always assumed he was a non-catholic, not that it matters. Most of the rebels were in fact Presbyterians with a good numbers of catholics, the story is that many of the catholics ran away home when the fighting got rough around Randalstown and Antrim. I have been to the memorial many times. I will be there again this September and may get to visit Duneane.