GHQ
The initial Commander-in-Chief of the BEF was Field-Marshal Sir John French. His Chief of Staff was Lieutenant-General Sir A. J. Murray, with Major-General H. H. Wilson as his deputy. GSO 1 (Operations) was Colonel G. M. Harper, and GSO 1 (Intelligence) was Colonel G. M. W. Macdonogh.
The Adjutant-General was Major-General Sir C. F. N. Macready, with Major-General E. R. C. Graham as Deputy Adjutant-General and Colonel A. E. J. Cavendish as Assistant Adjutant-General. The Quartermaster-General was Major-General Sir W. R. Robertson, with Colonel C. T. Dawkins as Assistant Quartermaster-General. The Royal Artillery was commanded by Major-General W. F. L. Lindsay, and the Royal Engineers by Brigadier-General G. H. Fowke.
Read more about this topic: British Expeditionary Force Order Of Battle (1914)