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This file concerns Bernard Julius Otto Kuehn, a German resident of Hawaii investigated for espionage before and after the attack on Pearl Harbor. Early 1939 FBI and Navy Intelligence correspondence relayed allegations that Kuehn and his wife Friedel entertained military personnel near Honolulu while seeking information about Army and Navy activity. Later records compare Kuehn's reported ship counts to Japanese Consulate reporting on Pearl Harbor in late November and early December 1941, including detailed Navy vessel movement tables. The file also includes a 1944 FBI account of interviews following the Kuehns' detention and prison correspondence-routing records from Leavenworth.

FBI file number: 65-1574 | Documents span: 1939-1944 | Released in 4 parts
Names in this file: Bernard Julius Otto Kuehn, Friedel Kuehn, J. Edgar Hoover, Walter A. Hunter
Subjects: espionage, Pearl Harbor, Hawaii, Japanese intelligence, Navy intelligence, Leavenworth prison