In 1993 he returned to England and became the Parish priest of English Martyrs, Sparkhill until 1998. It was while in Sparkhill that McDonald developed his interest in inter-religious dialogue. From 1998 until 2001 he was Rector of Oscott seminary. McDonald was consecrated the 11th Bishop of Northampton on 2 May 2001 by Bishop Leo McCartie, assisted by Archbishops Patrick Kelly and Vincent Nichols.
Archbishop of Southwark
On 8 December 2003, McDonald was installed as the Archbishop of Southwark on the feast of the Immaculate Conception, the patronal feast of the archdiocese. After becoming archbishop, McDonald suffered with ill health, spending a significant portion of 2008 on sick leave. Besides suffering from severe osteoarthritis, he underwent a triple heart bypass. He was rumoured to be Pope Benedict XVI's first choice to replace Cormac Murphy-O'Connor as Archbishop of Westminster. However, on 4 December 2009, following the announcement of Vincent Nichols as Archbishop of Westminster, McDonald resigned his post on health grounds.[3]
Personal
He has an elder brother and sister and two younger brothers. He has nine nephews and nieces and three great-nephews.