Captain Graeme Chamley Wynne was born in 1889. He was commissioned into the King’s Own Yorkshire Light Infantry in 1907. Climbing through the ranks, he was serving in the 2nd Battalion at the outbreak of war in 1914. As part of the British Expeditionary Force he was captured by the Germans at Le Cateau on 26 August 1914. Wynne was employed by the Historical Section, Committee of Imperial Defence (later the Historical Section, Cabinet Office) between 1918 and 1956. It was in this role that he completed the report published in this book on 19 May 1948.