Copies of confidential reports and dispatches sent to General John J. Pershing and other officers of the high command of the U.S. Army American Expeditionary Forces, in pursuance of Clark's duties as American liaison officer to the French General Headquarters, beginning early in 1918 and continuing until after the Armistice. A detailed, almost daily account of the French officers' activities, attitudes, and plans as they affected the American forces. Names of officers appearing frequently include Carl Boyd; Charles, comte de Chambrun; Fox Conner; Ferdinand Foch; James G. Harbord; and Philippe Pétain. Includes Pershing's statement concerning Clark's services and a list of Clark's letters to Pershing.