He was the chairman of the Church of England's Committee for Communications, President of the Church Housing Association, a member of the Board of Governors of Nene College and an honorary fellow of Emmanuel College, Cambridge from 1989 until his death.
Westwood was a regular contributor to Thought for the Day on BBC Radio 4's Today programme.[8] He was a member of the Press Council (1975–81), the IBA Panel of Religious Advisers (1983–7), the Video Consultative Council (1985–9) and the Broadcasting Standards Council (1988–92).
Following his death a memorial slab was erected in the south aisle of Peterborough Cathedral to his memory.
Oakham Ales produced a beer in honour of Westwood on his retirement, 'Bishop's Farewell', which is stiil being brewed.
^'WESTWOOD, Rt Rev. William John', Who Was Who, A & C Black, an imprint of Bloomsbury Publishing plc, 1920–2015; online edn, Oxford University Press, 2014