Major-General Sir Donald Jay McMullen CB KBE DSO (1891 – 12 November 1967) was a British Army officer of the Royal Engineers. He served in both of the World Wars. References McMULLEN, Maj.-Gen. Sir Donald Jay', Who Was Who, A & C Black, 1920–2008; online edn, Oxford University Press, December 2007 accessed 21 Nov 2010 External links National Portrait Gallery London Gazette London Gazette British Army generals 1967 deaths 1891 births Royal Engineers officers Companions of the Distinguished Service Order British Army personnel of World War II British Army personnel of World War I