for the Navy. The Navy did an extensive background investigation on him because of his German heritage and relatives still in Germany. He even 'jokingly claimed that the Navy had found relatives that he had never heard of.'' (11)  With his background in radio and computing machinery, Joe was indispensable to the Navy's research in building its own Bombe. Because of the secret nature of the work the Navy needed Joe Desch to do, he was forced to disassociate from all his Dayton relatives, except his mother. 'The war demanded immediate, unrelenting research in areas for which Joe Desch was qualified, and he had no choice but to accept the responsibility that the Navy asked of him.' (12)

Meanwhile, in Washington, communication continued with Britain. In April 1942, Colonel John Tiltman from GC&CS visited OP-20-G, the U.S. Navy's cryptanalytic office, and sent a message back to England: 'In view of the fact that [the U.S. is] now at war and have a vital interest in submarine traffic, they are entitled to results. . . .' (13)He also stressed, 'Unless a rapid and satisfactory solution is found . . . the high command will insist on their Naval cryptanalysts attempting to duplicate our work on 'E'.' (14)

In July 1942 two U.S. naval officers went to Bletchley Park with the intention of studying BP's research organization. They had additional orders to acquire more details about the Enigma solu-