He was an Irish or Scottish monk, who being made abbot of Hij, or Saint Columkille’s great monastery, introduced the Roman manner of celebrating Easter. After governing that abbey ten years, he died in 717. He is titular saint of the church of Kilclocair in the diocese of Armagh.
- Father Alban Butler. “Saint Dumhade of Ireland, Abbot”. , 1866. CatholicSaints.Info. 25 May 2012. Web. 4 October 2015. <http://catholicsaints.info/butlers-lives-of-the-saints-saint-dumhade-of-ireland-abbot/>