The military force at Little Rock under Dunnington 's command consisted of four officers : himself , Major John B. Lockman , Captain C.C. Green , and 2nd Lt. W.W. Murphy . In addition to these , he had 20 enlisted men and a civilian force composed of a foreman , 2 clerks , 3 gunsmiths for repairing small arms , a laboratorian , 26 laborers in the ammunition laboratory , and a carpenter for making packing boxes .