Suggest you write to Superintendent of Documents, U.S. Government Printing Office, Washington, DC. and see if the series of books, "United States Army In World War ll" are still available. The volume entitled, "The War In The Pacific - Guadalcanal: The First Offensive by John Miller, Jr. published by Historical Division, Dep't. of the Army, Washington, D.C.,1949. It has the information you desire on the Americal Division and the 182nd Inf. plus Bouganville info. It has charts, maps, photos, etc. included. I did not serve in the Americal Division. I was in the Navy , landed troops at invasion, Aug. 7, 1942 and was attached to Navy Base, Lunga Point there. I saw Americal Div. in action and they did a great job in conjunction with the Marine Corps. Hope you are successful in acquiring the book - it is well done and factual.