Page:FBI-FOIA-VENONAa.pdf/7



We are currently attempting, through investigation, to identify an employee of MED at Los Alamos in 1944, designated by the cover name of Kalibr and Schmel. The known facts regarding this individual, from are that he was to be contacted near Los Alamos in the latter part or November, 1944, by one Osa. It was later reported that he had been contacted and was willing to assist the MGB. It was reported that he arrived in New York City on leave in early January, 1945. We originally thought he might be Luis W. Alvarez, a prominent physician now employed at the Radiation Laboratory in Berkeley, California, but upon the receipt of the information from the source that the individual had arrived in New York City in early January, 1945, we determined that Alvarez was not there at that time. We are conducting an intensive investigation to develop this individual's identity, hampered by the fact that certain leave records at Los Alamos have been destroyed. We are also, through investigation, attempting to identify Osa.

Recent Information from reflects that Theodore Hall, in November, 1944, was in New York city, where he was in contact with Saville Sax. Hall, at that time, was employed by MED at Los Alamos. At the recommendation of Sax, Hall agreed to supply to Soviet Intelligence information concerning work being done at Los Alamos. Hall delivered to Beck (unidentified) certain information, and Sax contacted an official at the Soviet Consulate and delivered to him certain information. Based on the foregoing, an intensive investigation has been instituted.

Theodore Alvin Hall, who is identical to the Hall mentioned in the information, presently is employed at the University of Chicago at the Institute of Nuclear Physics.

Sax also is residing in Chicago, where he is operating a mimeographing business.

Further investigation is being conducted to determine the current activities of these individuals and to identify Beck.