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ee oo ce ee : eo) mp oe care ae Meeeyat 2 Ae +t fa + Mw py — *. - . . we 4 +. [a \ w | WKH: IS November 10, 1944 65-1454 [eta i AL, abe - _ ° entered the German Impe vy in as a Cadet and re th . the son 7 rank of Kapitanieutnant, which is the equivalent of the American Naval rank of Commander. During his service in the German Navy, RE cores in 1911 in China avd served throughout the First World War. As a result of his Raval service, received for many years a pension from the German Reich and so far as is known this pension was only terminated by practical difficulties in payment incident to war and pre-war currency restrictions. Bie oni grated from Hamburg, Germany to the United States stoars ene, aa the Port of New York on November 23, 1923. During the peri to 2 oac0 at least eight trips to Oernary. ; 65-1454-165, 186, 19} . arrival in the United States he divorced his first wife, an Anerican, Philadelphia, Pennsylvania, whom he had : ‘4 at Brussels, selglum, in 1912, In 1926, married tha American-born child of a Dutch father and an American mother, ¥ sucsequently, at the time of petition for naturalization, apparently claimed to be a citizen of the Unite 8. on filed Petition for Naturalisation No. n the United States District Court at New York City ani was admitted to Uni States citizenship on Certificate of was the District Manager and a responsible Shortly prior to From 1928 to 19 exscutive of the During this perio was closely affiliated with German activities in the New York area and in fact was, as set out in detail hereinafter, the leader in the United States of t during several years pr . wa8S instrumental in assisting the leader of and at thet time of n the United States; eave New York surreptitiously for Cermany, at t e he was indicted by a Federal Grand Jury in New York City on nharces of violating the Notification Section of the Espionage Act of 1917. It has . alag been alleged that Mensing assisted in the clandestine departure from the United _Statescof Dr. Ignaz Griebl in 1938, at the time Griebl was wanted by United States avthorities dn connection with the Gunther Gustav Rumrich espionage case. Investiga~ tion-of the Rumrich case by the Federal Bureau of Investigation reflected that Griebl “was a- German espionage agent and at the time he fled the United Stet dates pe,was, ander indictment in the United States District Court in the Rastern Distr) of KEES | Tt has been reported 65-/4H-A3 1. yA gall cE PO IE ne Fre AEF = itt OES aE A OS RT ye Oe et ee A, at OW ane — Laat - - oe - Ft ~ oy Poa Ral = ee . Me aa =