Henry Morgenthau

Henry Morgenthau emerges as a senior Cabinet official whose ambitions collided with Harry S. Truman’s plans for the Potsdam Conference. His proposed transformation of Germany into an agricultural country was rejected by Truman and opposed by Henry Stimson; his exclusion from the conference then became entangled with a dispute over whether he would remain Treasury Secretary. Accounts of that departure differ, leaving both a policy disagreement and a personal rupture visible in the record.

Role and the German question

As Treasury Secretary, Morgenthau sought a place in the delegation traveling to Potsdam and was deeply disappointed when he was not included. His exclusion mattered in part because he had a sharply defined postwar vision for Germany: he wanted its heavy industry removed and the country reduced to an agricultural land. Truman had never taken the plan seriously, and Stimson argued against it. For Stimson, a productive German economy was essential to Europe’s future stability; Germany’s war criminals should be punished and its military capacity restricted, but the country should not be denied the means to become contented and nonmilitaristic.

The disagreement set Morgenthau’s preferred remedy against Stimson’s effort to distinguish punishment from economic ruin. The issue was not simply whether Germany should be disarmed: Stimson supported stringent restraints on weapons and governmental action while rejecting the permanent destruction of its industrial capacity. The contrast helps explain why Morgenthau’s exclusion from the conference was politically charged, even though the evidence does not establish that his Germany plan was the reason he was left behind.

Exclusion from Potsdam

Morgenthau was eager to take part in the conference and was extremely upset when he learned he would not go. On July 5, he met Truman in the Oval Office and, according to Truman’s account, said that he had to play a part at Potsdam and would resign if he could not. Truman replied that if this was his position, his resignation was accepted at once; the announcement followed that same day. The speed of the exchange turned an argument about conference participation into an immediate change in the Cabinet.

There was an additional complication in the background. Officials had pointed out that if an accident on the journey to Berlin killed both Truman and Secretary of State Byrnes, the law of succession would make Morgenthau President. The prospect distressed Truman. The account does not establish why: although Morgenthau suspected that his Jewish identity was the reason, nothing Truman said or wrote is cited as confirming that interpretation. The detail therefore records a suspicion and a reaction, not a demonstrated motive for Morgenthau’s exclusion or resignation.

Truman appointed Fred M. Vinson to replace Morgenthau at Treasury. Vinson had served in Congress and as a federal appeals-court judge, and had led the Office of Economic Stabilization and the Office of War Mobilization and Reconversion. Truman regarded him as one of the best people in government. The appointment made Morgenthau’s departure more than a temporary absence from the Potsdam delegation: he left the Cabinet, and another official took charge of the department.

Conflicting accounts of the rupture

Morgenthau’s own diary gave a different emphasis to the meeting. It did not mention Potsdam. Instead, it described Truman as weak and indecisive about whether Morgenthau should stay in his post until the end of the war. In Morgenthau’s account, he pressed Truman to decide whether he wanted him to remain through V-J Day and asserted that he was at least as capable as some of the five recent Cabinet appointees, adding that he considered some of those choices mistakes.

The divergence matters. Truman’s account presents the resignation as the consequence of Morgenthau’s demand to attend the conference; Morgenthau’s diary presents the conflict as a question of whether Truman wanted him to continue as Treasury Secretary. Neither version erases the other’s central tension: Morgenthau felt his place in the administration was in question, while Truman treated his ultimatum as grounds for immediate acceptance. The difference also cautions against reducing the episode to a single motive or a settled account of who initiated the break.

Years later, speaking with Jonathan Daniels, Truman dismissed Morgenthau’s competence in blunt, contemptuous language. The remark retrospectively sharpens the break between the two men, but it does not resolve the discrepancy between their accounts of the July meeting. In the narrative, Morgenthau’s significance rests less on a sustained role at Potsdam—he did not attend—than on the collision between his plan for Germany, his claim to a place in the conference, and the swift end of his Cabinet service.