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March 6, 1942

1. Mr. Philip Johnston of Los Angeles recently offered his services to this force to demonstrate the use of Indians for the transmission of messages by telephone and voice-radio. His offer was accepted and the demonstration was held for the Commanding General and his staff.

2. The demonstration was interesting and successful. Messages were transmitted and received almost verbatim. In conducting the demonstration messages were written by a member of the staff and handed to the Indian; he would transmit the messages in his tribal dialect and the Indian on the other end would write them down in English. The text of messages as written and received are enclosed. The Indians do not have many military terms in their dialect so it was necessary to give them a few minutes, before the demonstration, to improvise words for dive-bombing, anti-tank gun, etc.

3. Mr. Johnston stated that the Navaho is the only tribe in the United States that has not been infested with German students during the past twenty years. These Germans, studying the various tribal dialects under the guise of art students, anthropologists, etc., have undoubtedly attained a good working knowledge of all tribal dialects except Navaho. For this reason the Navaho is the only tribe available offering complete security for the type of work under consideration. It is noted in Mr. Johnston's article (enclosed) that the Navaho is the largest tribe but the lowest in literacy. He stated, however, that 1,000 — if that many were needed — could be found with the necessary qualifications. It shou1d also he noted that the Navaho tribal dialect is completely unintelligible to all other tribes and all other people, with the possible exception of as many as 28 Americans who have made a study of the dialect. This dialect is thus equivalent to a secret code to the enemy, and admirably suited for rapid, secure communication.