William of Malmesbury informs us, that Saint Dunstan, when bishop of London, appointed him abbot of twelve monks at Thorney, since called Westminster, where Saint Mellitus had built a church in honour of Saint Peter. Vulsin was afterwards chosen bishop of Shireburn; his holy life was crowned with a happy death in 973. He is called Ultius by Matthew of Westminster; but his true ancient name, given by Capgrave, is Vulsin.
- Father Alban Butler. “Saint Vulsin, Bishop of Shireburn, Confessor”. , 1866. CatholicSaints.Info. 8 January 2013. Web. 6 July 2015. <>