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Headquar rs 35th Division, MF MORANDUM American Expeditionary Forces 37 July 1918. DIVISION CODE In effect at noon 28 July 1918. Instructions for use. (1) Answer fone calls promptly, RING OFF at end of conversation. (2) The enemy has excellent listening apparatus and spies and has frequently picked up information with disastrous effect to our troops. One careless word may convey valuable information to the enemy and mean the lives of many men. (3) Except in an emer gency never should any message in regard to tactics be sent in the clear, except by messenger runner or buzzerfone, but many things by gareful thought maybe so camouflaged as to avoid the neces- sity of coding all messages. (4) Never use name of a town, the rank of an officer or the desig- nation of an organization. Use the code names of towns and locations, as well as the code names of organizations, and of officers, if they have them If an officer has no code name, omit rank and prefix his name with Mister. (5) Telephone operators will cut off connection of anyone violat- ing these orders and report all violatione to Division Signal Officer with name and rank of offenders. (6) This code will be strictly adhered to. CODE NAMES 35TH DIVISION. Clear Towns Code to B wall BUSSANG MAPLE BOUSSAT " LARCH CORNIMONT WILLOW C DREH CHERRY FELLERGEN APPLE FRENZ PEAR HOLTEPIATZ BEFCH KRUTH HEMLOCK LA TRESSE CYPRUS LOU CLAPAS FIR MALMERSPA CH WA LINUT MITLACH SPRUCE MOLKENRAIN HICKORY METZERAL SYCAMORE MOLLAU CHESTNUT DECLASSIFIED 3-402 DOD Directive 5100.30, June 18, 1979 By NLT: m NARS, Date 5-21-d2