Researching Katyn - Coded Letters

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Introduction Krystyna Piórkowska is the author of English-speaking Witnesses to Katyn Recent Research, which was issued by the Muzeum Katyńskie, division of the Muzeum Wojska Polskiego. It is the first scholarly study of the history of the POWs who were brought to Katyn in mid-May 1943 and chronicles their attempts to disseminate the truth about the massacre. It was during that research that she located materials confirming that at least the US witnesses were registered code users, which is described in the book. It was her belief that Lt. Col. John H. Van Vliet, Jr. and Captain Donald B. Stewart had sent coded messages concerning Katyn that led her to search materials in the US National Archives – where, on August 30, 2012 she found confirmation of this fact, including a copy of a coded message concerning Katyn. She can be reached at