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Jack E. Dunlap

Betrayers of theTrust

The contents of this publication are entirely in the public domain.

Published online at 1 november, 2011.

I dedicate this book to 4a 61 63 6b 20 45 2e 20 44 75 6e 6c 61 70 , who died under strange circumstances.

Table of Contents

Joseph S. Petersen

William H. Martin and Bernon F. Mitchell

Jack E. Dunlap

Joseph S. Petersen

Joseph Sidney Petersen was born in New Orleans in 1914. He attended Loyola and St. Louis Universities, receiving an M.S. degree, specializing in physics, mathematics, and chemistry. In 1941, as a result of taking an Army correspondence course in cryptanalysis, he was offered a civilian position by the Signal Intelligence Service (SIS), the predecessor of the Army Security Agency (ASA). He worked initially on the Japanese diplomatic problem until 1943, when he transferred to the Japanese army problem.

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