James Forrestal is sworn in as the first Secretary of Defense by Chief Justice Fred M. Vinson, in the office of the Secretary of the Navy, 17 September 1947. Also present are (left-right): unidentified man; Secretary of the Army Kenneth C. Royall; General Dwight D. Eisenhower; Secretary of the Navy John L. Sullivan; Fleet Admiral C.W. Nimitz; Secretary of the Air Force Stuart Symington; and General Carl Spaatz.
National Archives
<a rel="nofollow" class="external text" href="https://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/80-G-704000/80-G-704442.html">80-G-704442 James Forrestal swearing in ceremony</a>