l • UNIVERSITY OF November 9 1942 RADIATION LABORATORY BERKELEY CALIFORNIA T 11 doevment eontein r informet ion efFe tlng t e N et ior el Defense of the U nited Stotes within the mean ing o t ' Espionaoo Act U S C 5 0 3 1 ond 32 Its Lr an · or tho rcve lotion o f it cont Q nts in any monne r t o on unauthorized person is prohibite d by law Brigadier General L R Groves Deputy Chief of Construction Office of the Chief of Engineers War Department Washington D c Dear General Groves I am sending you under cover three separate memoranda One of them is the promised personnel list It is not as complete in details as I should like it to be because many of the men who are now working for us and lrho would normally transfer to the new laboratory are not well known to me It seemed to me desirable that the quite extensive investigations should not be held up until we have established closer contact with all these men I have tried to indicate by the notation what the statue of the man is and to what extent we feel certain that he would be risht for us The second memorandum has to do with our major equipment problem The only question which we need answered at once is whether it would be appropriate for us to visit these laboratories and make an inventory of the auxiliary equipment that we shall need The third memorandum has to do with a young man who is now in the and whom we should like to have assigned to us for our work provided investigation shows him to be reliable Army The only men in addition to Manley and McMillan who will be working with us in the immediate future are the three who head Group III and who are described in some detail in the enclosed letter to Dr Conant All three of these men are married They are all citizene and all have received at least the two-bit clearance Bacher and Kurie I know well They are men of the hisheet character and I am sure that investigation will show them to be fully satisfactory I hope to see you in New Mexico With all wann greetings Cordially Robert Oppenheimer 1v pg DECLASSIFIED Authority tJtJ q ' 1 VJ 0 Q 7 - _ I •SECRET EXPLANATORY NCYI'ES FOR P msoNNEL LIST T his doct11ment contein informat ion eiHoctlng t he NationDI Drfpnr e o f tho United Suto within t ho m e ning oF tho E pio nDQC Act Men marked 1 I regard as essential to our project U S C 50 JI o-nd J l It transm iss ion or t h e rove oti o n of it s cont - nt t fn any ma nne r t o a n unoutho ized pe rson i p rohibitod by low Men marked 11 2 11 it would be good to have since they are competent and have been working with ue in the peat Men marked 21 would be good to have and have been given information about our plans which goes very far The mark X means that clearance hae recently been requested The mark O means that the men are aliens although their citizenship ie not far off The mark o means Canadian m means married m' means married with children e means single notation means that I have no information No The notation to the left of the names L O and M means that the men are personally known to Lawrence Oppenheimer or McMillan and that their personal qualities are such that we feel they would work out well in the laboratory and we have no reason to be anything but sure of their loyalty The list is divided into three groups I Men now working on experimental projects connected with our program II Men now working on our theoretical projects III Men whom we should like to have who are not now working directly on our part of the problem In this third list notation C means that I have asked Dr Conant to obtain the release of these men from their present obligations The notation p means that they are working on another part of our general proj ect The notation i means that they have essentially complete information about our project This list includes all of the more responsible people who are working for us or whose immediate release we ask rt does not include the very large number of graduate or under-graduate students who are working with these men rt also does not include some men whom we shall want later nor provision for certain specialized talents where we have not yet found the right man for the job DECLASSIFIED Authority tJN C Q ' - - GROUP r O M m Univ of Calif Berk Manley John H m' Univ of Illinois Univ of Chicago 1 Univ of Wisconsin Univ of Wisconsin 2 Univ of Wisconsin Univ of Wisconsin 2 Bl air J M Univ of Wisconsin Univ of Wisconsin 2 Heydenburg Norman P Dept of Ter Mag Dept of Ter Mag 2 Meyer R C Dept of Ter Mag Dept of Ter ·Mag 2 Hanson Alf'red O M M o m' Stanfor d University Stanfor d University 21 Staub Hane m' Stanford University Stanford Univer sit y 2 Stanf ord Uni versit y Stanford University 2 Bennett vl m E Rice Instit ute Univ of Minnesot a 2 Richards H T Rice Instit ut e Univ of Minnesota 2 Uni v of Minnesota Univ of Minnesota 2 Holloway Marshall G Cornell Universit y Purdue Univer s i ty 1 Baker Charles P Cornell Uni versit y Purdue University 2 King L D Percival Purdue University Purdue University 2 X Schreiber Raemer E Purdue University Purdue University 2 X m Univ of Calif Berk Univ of Calif Berk 1 m' Univ of Calif Berk Univ of Calif Berk 1 Univ of Calif Berk Univ of Calif Berk 1 Univ of Calif Berk Univ of Calif Berk 1 Univ of Calif Berk Univ of Calif Berk 1 De Vault D c L O M Kennedy Joseph L O M Segre Dnilio G L Wahl Arthur C L O M 1 Bloch Felix Williama J ohn H 0 Present Address McMillan Edwin M McKibben Joseph L L O M Experimental Men Now Working For Us Home University Name L o - SECRET w Chamberlain OWen Wi egand Clyde E m' a DECLASSIFIED Authority 7 tJtJ q 'f _ 0 0 SECRET c GROUP II Theoretical Men Now Working For Us Present Address Home University L O M Serber Robert m Univ of' Illinois Univ of Calif Berk 1 L O Nelson Eld red 8 Univ of' Calif' Berk Univ of Calif Berk l L O Frankel Stanley P 8 Univ of Calif Berk Univ o-f' Calif Berk 1 0 Teller Edward m George Washington Univ Univ of Chicago 1 0 Bethe Hans A m Cornell University M I T 1 0 van Vleck J II • m Harvard University Harvard University 21 0 Konopinaki ID n il J 8 Indiana University Indiana University 21 DECLASSIFIED Authority M ill - Sd-WQ j SECRET f GROUP III - Name 4 '• I ' • Men Whose Prompt Release We Desire Home University Present Address L O M Kurie Franz N D m Indiana University Pt Loma Calif C L O M Bacher Robert F m' Cornell University M I T Rad Lab C L Herb Raymond G m Univ of Wisconsin M I T Rad Lab C Feynman Richard s Princeton University Princeton University C p L O M Wilson Robert R m Princeton University Princeton University p L O M Deleaeeo Lewie A a Princeton University Princeton University p L o Fermi Enrico m' Columbia University Univ of Chicago p Anderson Herbert L s Columbia University Unav of Chicago p Christy Robert F m Univ of Calif Berk Univ of Chicago p Univ of Michigan M I T Rad Lab m' Cal Inst c £ Tech Cal Inst of Tech m' Univ of Calif Berk M I T Rad Lab m' Harvard University Harvard University m Univ of Illinois Univ of Illinois M 0 L O M Lawson James L L O M Fowler Wm A L O M Alvarez Luis w O Bridgman Percy O Kerst Donald w w Johnston Herrick L Ohio State Univ Chem DECLASSIFIED Authority r-JtJDq 1 Q • i 0 i C p