P. J. Grigg
Sir Percy James Grigg PC (16 December 1890 – 5 May 1964), better known as Sir P. J. Grigg was a British civil servant who was surprisingly moved from being the Permanent Under-Secretary of State at the War Office to become Secretary of State for War, the political head of the same department during the Second World War.
Read more about P. J. Grigg: Background and Education, Career in Civil Service, Secretary of State For War, Later Life