1848–1849: Friedrich Ludwig von Rönne (October 1848 - December 1849; (January 26 - December 21, 1849) simultaneously "Envoy Extraordinary and Minister Plenipotentiary for the Central Government of Germany" i.e., the Frankfurt Parliament)
1937–1938: Hans-Heinrich Dieckhoff, recalled November 18, 1938 in response to worsening relations with the U.S. due to Kristallnacht (November 9), and the U.S. recall of its Ambassador (November 15).
1951–1958: Heinrich Krekeler (20 July 1906 – 5 August 2003), (June 1950 – June 1951: Consul General, June 1951 – May 1955: Chargé d'Affaires, May 1955 – January 1958: Ambassador)
1958–1962: Wilhelm Grewe (16 October 1911 – 11 January 2000) (February 1958 – May 1962)