McKittrick was educated at John Marley School in Newcastle upon Tyne and at St Stephen's House, Oxford. He was ordained in 1977  and after curacies at St Paul’s Deptford and St John’s Tuebrook held two incumbencies in Liverpool. He was then vicar of St Peter’s Brighton until his archdeacon’s appointment.
McKittrick's retired on 1 July 2018.
- Diocese of Chichester website
- Crockfords, London, Church House, 1995, ISBN 0-7151-8088-6
- "McKittrick, Ven. Douglas Henry", Who's Who 2012, A & C Black, 2012; online edn, Oxford University Press, December 2011; online edn, November 2011 accessed 22 Oct 2012
- Acting Archdeacons Appointed Archived 2018-08-29 at the Wayback Machine (Accessed 29 August 2018)
|Church of England titles|
| Archdeacon of Chichester
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