Henry DeWolf Smyth

Henry DeWolf Smyth was a physicist, a Princeton neighbor of J. Robert Oppenheimer, and a commissioner of the United States Atomic Energy Commission. In the 1954 security case against Oppenheimer, Smyth’s importance lay in separating personal dislike from his judgment of the evidence: he alone among the commissioners voted to restore Oppenheimer’s clearance. His dissent, written against a compressed deadline and amid mounting pressure, preserved a principled objection to a verdict he considered unsupported; years later, at Oppenheimer’s memorial, he described the treatment as an enduring blot on the country’s history.

Identity and professional position

Smyth knew Oppenheimer not only as a public figure but as a Princeton neighbor. The two had lived near one another for ten years, and Smyth had served as a commissioner when Oppenheimer’s loyalty and access to government secrets came under review. Smyth was also the author of the 1945 “Smyth Report,” an unclassified scientific history of the Manhattan Project. His familiarity with Oppenheimer and with the security questions surrounding the project gave him a basis for assessing the case, though he did not mistake familiarity for personal affection.

The biography emphasizes that Smyth did not particularly care for Oppenheimer. Oppenheimer had struck him as vain and pretentious. What mattered in Smyth’s assessment, however, was not whether he liked the man but whether the record justified taking away his clearance. Smyth did not find the evidence convincing. His position thus cut across the personal antagonism and political pressure surrounding the proceedings: he could dislike Oppenheimer and still oppose a decision he regarded as unjustified.

Disagreement over the verdict

In early May 1954, Smyth and Lewis Strauss had lunch and argued about the outcome of the case. Smyth summarized their different ways of judging the evidence: “Lewis, the difference between you and me is that you see everything as either black or white and to me everything looks gray.” Strauss answered, “Harry, let me recommend you to a good oculist.” The exchange distilled a deeper dispute. Strauss treated the case as a matter of decisive categories; Smyth saw uncertainty and shades of judgment, and resisted turning suspicion into proof.

The dispute became consequential as the commissioners prepared their final decision. Smyth was the only commissioner who maintained that Oppenheimer’s security clearance should be restored. A letter from Kenneth Nichols introduced a new supposition about Oppenheimer’s conduct, one that had not been raised by the Gray Board. Smyth warned that if Oppenheimer’s attorneys were denied the opportunity to respond, publication of the letter would expose the Commission to “grave criticism.” His warning was not heeded: the request for an opportunity to comment was rejected without explanation.

Writing the dissent

Smyth decided to write a dissenting report and undertook the work himself. He spent evenings working until midnight, reading the Gray Report alongside the hearing transcript, a stack of papers four feet high. He asked two staff aides to assist. Nichols warned one of them, Philip Farley, that helping Smyth could damage his career; Farley went ahead with the work.

The task became more urgent when the majority opinion was rewritten after Smyth had already prepared a draft. On the evening of June 28, Smyth and his assistants began composing a new dissent, with only twelve hours before the Commission’s deadline. Through the night, Smyth worked while a car stood outside his house with two men inside. He suspected that someone from the Commission or the FBI had sent them to intimidate him. Even then, his objection was not grounded in personal devotion to Oppenheimer. Late that night he told an aide, “You know it’s funny I should be going to all this trouble for Oppenheimer. I don’t even like the guy much.” The effort, as he framed it, was about the fairness of the decision rather than affection for its subject.

At ten the next morning, Farley carried Smyth’s dissent to the Commission’s offices and stayed to ensure that it was reproduced in full. That afternoon, the dissent and the majority opinions were released to the press. The commissioners voted four to one that Oppenheimer was loyal, yet also four to one that he was a security risk. Smyth’s vote was the one against stripping Oppenheimer of his clearance. The majority opinion, drafted by Strauss, focused on Oppenheimer’s character and associations, including the Chevalier affair and connections with former students who had been communists. It omitted the hydrogen-bomb issue, although that had been central to the Gray Board’s decision.

Consequences and public judgment

Oppenheimer’s clearance was revoked one day before it was due to expire. Smyth’s dissent did not prevent that outcome, but it made visible a serious disagreement inside the Commission about the evidentiary basis and fairness of the case. At Oppenheimer’s memorial, Smyth returned to the consequences of the decision. He recalled that in 1954 he had been the only one of five commissioners to vote to restore the clearance, and said of the hearing, “Such a wrong can never be righted; such a blot on our history never erased. . . . We regret that his great work for his country was repaid so shabbily. . . .”

That judgment links Smyth’s roles as neighbor, commissioner, and dissenting author. He knew Oppenheimer personally but did not claim personal admiration as the reason for his vote. Instead, he stood against the majority because he found its case unpersuasive, challenged the withholding of a new accusation from Oppenheimer’s lawyers, and spent a night producing a dissent that the Commission had nearly left without a meaningful public hearing. His memorial words gave that procedural opposition a lasting moral conclusion: the injury, in his view, belonged not only to Oppenheimer but to the country’s history.