By Please find, attached, a copy of the image, which I am happy to supply to you with permission to use solely according to your licence, detailed at https://creativecommons.org/licenses/by-nc-nd/3.0/
It is essential that you ensure images are captioned and credited as they are on the Gallery's own website (search/find each item by NPG number at http://www.npg.org.uk/collections/search/advanced-search.php).This has been supplied to you free of charge. I would be grateful if you would please consider making a donation at http://www.npg.org.uk/support/donation/general-donation.php in support of our work and the service we provide.
Regards Rights and Images Department National Portrait Gallery St Martin's Place London WC2H OHE - National Portrait Gallery, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=71924481

Sir Alan Cuthbert Maxwell Burns GCMG (9 November 1887 – 29 September 1980) was a British civil servant who rose through the ranks to become governor of several colonies, he also authored a number of books on politics and history, including a book on "Colour Prejudice". He served as Governor of Nigeria, taking office in 1942, leaving on 18 Dec 1943.