BUTLER, Gen. Sir Mervyn (Andrew Haldane)’, Who Was Who, A & C Black, an imprint of Bloomsbury Publishing plc, 1920–2016; online edn, Oxford University Press, 2014 ; online edn, April 2014 accessed 9 June 2016Archived 28 April 2024 at the Wayback Machine
BUTLER, Gen. Sir Mervyn (Andrew Haldane)’, Who Was Who, A & C Black, an imprint of Bloomsbury Publishing plc, 1920–2016; online edn, Oxford University Press, 2014 ; online edn, April 2014 accessed 9 June 2016Archived 28 April 2024 at the Wayback Machine