"Owen O'Rourke ... is son to Con O'Rourke, son to Con, son to Tiernan, son to Owen, etc., ancient heirs and possessors of the estate of Carha in Leitrim and to Dorothy O'Connor, daughter to Bryan, son to Charles, son to Charles, all hereditary chiefs of the house of O'Connor, Sligo" - Calendar of Stuart Papers, iv, 5
"126. Owen: son of Brian Ballach.
127. Tiernan Bán: his son. By referring to the Annals of the Four Masters, A.D. 1590, it will be seen that this man was in alliance with his kinsman Brian Oge O'Rourke, in resisting the encroachments of Sir Richard Bingham, then the Queen's Governor of Connaught. Doubtless, he was among "wild Breffny's warlike band,"[4] who, led "by gallant Brian Oge, turned the scale of victory"[5] against Sir Conyers Clifford, at "Curlieu's Pass," near Boyle, on that memorable Feast of the Assumption, A.D. 1600.
128. Owen: son of Tiernan Bán; fought against Sir Frederick Hamilton. Had two sons: 1. Hugh; 2. Owen.[6] This Owen had two brothers—1. Brian, 2. Con: the former slain during the events of 1641-9, and the latter executed during the same unhappy period. Tradition tells that this execution took place in the presence, or within view, of his brother Owen, and in front of, or convenient to their father's house." – O'ROURKE (No.3)Of Innismagrath, County Leitrim – From Irish Pedigrees; or the Origin and Stem of the Irish Nation by John O'Hart