ed Press Photo
Dr. Vannevar Bush
the University of California, and was n-^ardecl
a> a leader in tin- theoretical aspects of atom*
istics and similar subjects of physics. Shortly
alter the Army entered into tin- development
of atomic energy, he was given a very important appointment l»y General Groves. This appoint ment made him direr tor of the laboratory at Los Vlamos, which was in all probability the most important post held b) any
civilian scientist in connection with the entire
effort. (General Groves undoubtedly made this
appointment alter a very careful stud) of the
entire affair from all angles, as this was his
custom on important appointments.
Subsequent developments made it very dear
that no error had been made in this connection, for Dr. Oppenheimer proved himself to
be not only a greal physicist, hut also a man
of excellent judgment and a real leader in thc
entire effort. In fit. it was due t<> the extraordinary accomplishments of Oppenheimer
and his associates thai the job was completed
on time. Subsequent to the end of the war
Dr. Oppenheimer has had a number of important appointments, lie was invited hv Secretary Stimson as one of tlie scientists consulted
by the Secretaries oi War and Navy in connection with the work of the Interim Committee.
He was appointed by the State Department as
a member of the hoard which drew Up the
plan on which Mr. Baruch based his program.
He has recently been appointed by the President as a member of the General Vdvisor)
Committee of vour organization. I have appointed him a member of the Committee on
Vtomic Energy of the Joint Research and Development Board. Ml of this has followed
from his extraordinary war record in which he
made a unique ami exceedingly important contribution to the success of the war effort of
I know him verj well indeed and I have
personall) great confidence in his judgment
\ erv truly your-.
(Signed) V. Bush, Chairman
II \K\ AKti I MV r.K-ITY
( IMBBIDGI . M iSSAI 111 SI iTS
Maw h 27, 1947
Mr. Du in K. I.ii.ii- \ in il
Chairman, Vtomu Energy Commission
Washington 25, D, < .
Di vh Mr. I.ii.iimii il:
1 am writing vou this tetter because I itn
derstand certain inquiries have been made in
regard to the loyalty of Dr. J. Robert Oppenheimer.
It i- quite unnecessary for me to recite in
this letter the tremendous contribution to the
war effort made b) Dr. Oppenheimer. \- director of the Los \lamos Laboratory he carried
a beav) responsibility both of a scientific and
technical nature and a- an administrator faced
with an extremely difficult problem. He fulfilled his duties in an admirable manner. I
think it can he said that he i- one ol three oi
four men whose combination ol professional
knowledge, hard work, and loyal devotion
made possible the development ol the homh in
time to end the Japanese war.
My first personal acquaintanceship with Dr.
Oppenheimer -tailed in the summer of 1(>H.
From then until the present da) I have -ecu
him intimately and discussed with him all
manner of questions. During the war I visited
Los Uaroos frequently and in so doing came
to know him very well. Since the war. I have
discussed not onlj atomic energj for industrial
and military purposes, but all phases of the
—United Press Photo
Dr. James B. Conant
international problem of control. Likewise,
our conversation has ranged over the whole
field of American politics and Foreign policy.
There-fore. I feel sure that the statements that
I make about him are based on an intimate
knowledge of the man. hi- views, and bis emotional reactions.
I can say without hesitation that there ran
be absolutely no question of Dr. Oppenheimer's
loyalty. Furthermore, I can state categorical]]
that, in my opinion, his attitude ahoiit the future course of the I nited States Governmenl
in matter- of high policy i- in accord,nice with
the soundest Vmerican tradition. He is nol
sympathetic with the totalitarian regime in
Russia and his attitude toward- that nation is,
from mv point of view, thoroughly sound and
hard headed. Therefore, any rumor that Dr.
Oppenheimer is sympathetically inclined toward the Communists or toward Russia is an
absurdity. Vs I wrote above, I base this statement on what I consider intimate knowledge
of the workings of his mind.
\t the time of \)y. Oppenheimer'- entering
tlie work on atomic energy, 1 heard that there
was some question of his clearance by the
security agencies. 1 understand that was based
on his associations prim- to 1939 and hi- "left-
wing** sympathies at thai lime. I have no
knowledge of Dr. Oppenheimer previous to
the summer of 1941, but I -ay unhesitating^
that whatever the record might -how a> to his
political sympathies at that lime or his associations, I would not deviate from niv presenl
opinion, namely, that a more loyal and sound
Vmerican citizen cannot he found in the whole
\ ei V -incrrel\ \olllS,
(Signed i I imes B. (,ox v\ i. Presidenl
\\ Mi Depari vii \ l
W V-HI NGTON, M MO II
Hon. David E. Lilies ih m.
Chairman, \tomh Energi Commission
I'i mn Hi vii ii Si i.v ii i Hi ilding
Washington, D. C.
Dear Mr. Lj lie n i ii vi .
In connection with vour inquiry aboul
.1. Robert Oppenheimer. a member nl the General Advisor) Committee to the Atomic Energy
Commission, 1 am glad to furnish the following information :
It i- m> understanding that Dr. Oppenheimer i- a leading physicist of the world.
During the war, he held the ke) post of Director of I.os Alamos Laboratory under the Manhattan District project, which as vmi know
was the enterprise under the War Department
responsible lor development ol the atomic
bomb. His performance in that post, under
direction of General Groves, wa- a brilliant
For hi- exceptional!) meritorious service, I"'
wa- recommended hv General Groves to receive
the Mela! lor Mcit in Vugust, 1945. This
recommendation was approved hy Secretary o'
\\ ai Stimson, and lhe award v\a- made hv
the Medal ol Merit Hoard appointed hv tl"'
Dr. Oppenheimer was also appointed hy the
War Department to he a member ol the Vd«
vi-nrv Panel of Scientists, to assist the Interim
Committee designated !>> Secretar5 Stimson in
Mav, I'M."), lo recommend policies in regard W
the alomie bomb and to suggesting legislation
concerning atomic energy. I met Dr. Oppenheimer several times in the course of this work
.nul received a most favorable impression ol
his ability, judgment, character, and devotion
Dr. Oppenheimer was recentl) appointed b)
—United Press Ph°'°
Robert P. Patterson
FACTS FORUM NEWS, May, '"'''