Chief of Naval Operations Nimitz, presidential Chief of Staff Leahy, President Truman, and Admiral Marc Mitscher on the bridge of Mitscher’s flagship, the carrier Franklin D. Roosevelt (CV-42), April 22 or 23, 1946. Truman was not above tweaking his chief of staff for his dour manner. On the back of Leahy’s copy of this photograph, Truman scrawled, “Admiral: You do not seem to approve! HST.” (U.S. Navy, courtesy of the Harry S. Truman Library)