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wal, ht TCM EY abbltig gle t* ele Sate ad a EINSTET, Abert RE: DUKAS, ‘Helen eee CORP, Eee ree ; i, ‘Reason FOR INVESTIGATION i is being conducted in « ca with communication from Headquarters 66th CIC Detachment, Subject and file as dated 30 Nov 50. The US Immigration and Naturalization Service is consid a investigation of SUBJECT for possible revocation of his citizenship. HelenXQUEAS, | who may have been SUSJECT's secretary prior to 1933, and who was reportedly bMaught ~ to the US by SUBJ'CT, was reported to ha in contact with Communists end suspected «". . + 1’ hati a 2. SYNOFSIS OF FREVIOUS INVESTIGATION: An FBI memorandum dated 23 Oct 50 - ° mentions a Helen DUKAS,' horn 17 Qct-3896 at FREIBURG, Gerneny (French Zone) as — having imuigrated into the US from Bermuda in 1935. She reportedly was brought - to the US by SUBJECT, and was later employed by hin as s ‘retary and housekeeper. ~ .- D reported to have corresponded during the early 19L0's with Soviet agent - Eo ute ne and to have been acquainted with Mrs Nett; DVANYI, a refugee German C 3. FRESENT INVESTIGATION: SUBJECT became director of the Kai per-Wilhele : Institute for Fhysies in 191h. Coming from ZUFRICE, he registered at BYRLIN-Dahlem, Fhrenbergstr 33. ‘In 1915 he moved to BFRLIN-Lichtenrade, wittelsbacherstr 13. From 1919 until 1933 SUBJECT lived at BERLIN-Schoeneberg, Haberlandstr $, fourth (German) floor. This street has been renumbered twice in the meantime. Both houses having hai the nunber 5 were destroyed. One former renter of this building, (fmu) TETZLAFY, BERLIN W 30, Bambercerstr 26, US Sector, stated that SUBJECT was on good terns with — a family named AUFHSACH. Lotte SCHIFFER, nee AUERBACH, now resides at 26 Ashford = - Pann TOMY WE DO A faesneer honeslaansr af the AVERRACH faritle. Marta ST KOuSRT. Ss us “3 Ee ee ee ee | e@ 24 OS Jf 4erU.Yo reat i ee et 3 Se BR Oe abo1t 70 years old, knows EINSTEIN quite well and'is still receiving food packages 1 from EINSTEIN, KXULKCGASKI is allegedly living either in HOF (M51/0.99) or in the "+ weighborhood of HOF. TETZLArF stated that SUBJECT did not have an office in or outside of his apartment. The only offices he maintained, according to this source, were in the Kalser~hilhelm Institute for Fhysics and at the University of BERLIN. [ORME Cena ne meqeerr ce Seg wee h. Available files show only one Helene DUKAS, wine dealer at BEREAN ¥ 8 Wilhelustr 7 in 1929. This adiress is now located in the Soviet Sector of BERLIN. . — S$. UNDEVELOFFD LEADS AND FUTURE ACTION; a EBL BS a. A search is being made for former associates of SUBJECT and for former comiumist intelleetuals who may have moved fn SIBJECT'’s circle of acquaintancess be Attempts will be nade to > ini tate discreet inquiries 1 in the Soviet - Sector regarding Ralene DUKAS. ae ; _ af eae . metas meee Bea Fe Yow ”. i eyes r . \ ° : ba am mt nk ca ee ae a ee OK te Aelenrrper Grr