ORGANIZATION AND DEFENSE INSTALLATIONS OF THE WAKE ISLAND DETACHMENT, FIRST DEFENSE BATTALION, 6 DECEMBER 1941
Commanding Officer: Maj. James P. S. Devereux
Executive Officer: Maj. George H. Potter Jr.
Munitions Officer: Marine Gunner John Hamas
Ordnance Officer: Marine Gunner Harold C. Borth
Communications Officer: T. Sgt. Randolph M. June
Medical Officer: Lt. (j.g.) G. Mason Kahn, USNR
Battery H: 2d Lt. Robert M. Hanna (eighteen .50-caliber antiaircraft machine guns deployed around the atoll)
Battery I: 2d Lt. Arthur A. Poindexter (thirty .30-caliber machine guns. Poindexter emplaced twenty-six guns around the atoll, keeping four at Camp 1 for the Mobile Reserve.)
Mobile Reserve: 2d Lt. Arthur A. Poindexter (four .30-caliber machine guns)
Sources: Lt. (Col. James P. S. Devereux, USMC, "Wake Island Report, Marine Detachment First Defense Battalion, 18 March 1946", 2-3, MCHA; Lt. Col. Arthur A. Poindexter, USMC, "Informal Report on the Operations of the .30 caliber MG Battery and the Mobile Reserve during the Defense of Wake Island", 4 April 1947, 1-3, MCHA.