Principal Officers and Chiefs of Mission, by year: 1919

Note: Career Foreign Service appointees are asterisked.

• Whitlock, Brand (1869-1934)
  • Envoy Extraordinary and Minister Plenipotentiary, Belgium (1913-1914)
  • Ambassador Extraordinary and Plenipotentiary, Belgium (1919-1921)
• Willard, Joseph Edward (1865-1924)
  • Envoy Extraordinary and Minister Plenipotentiary, Spain (1913)
  • Ambassador Extraordinary and Plenipotentiary, Spain (1913-1921)
• Adee, Alvey Augustus (1842-1924)
  • Third Assistant Secretary of State (1882-1886)
  • Second Assistant Secretary of State (1886-1924)
  • Secretary of State ad interim (1898)
  • Assistant Secretary of State (1924)
• *Bailly-Blanchard, Arthur (1855-1925)
  • Envoy Extraordinary and Minister Plenipotentiary, Haiti (1914-1921)
• *Bell, John Oscar (1912-)
  • Ambassador Extraordinary and Plenipotentiary, Guatemala (1916-1965)
  • Legal Adviser (2005)
• Birch, Thomas Howard (1875-1929)
  • Envoy Extraordinary and Minister Plenipotentiary, Portugal (1913-1922)
• *Blake, Maxwell (1877-1959)
  • Agent/Consul General, Morocco (1917-1922)
  • Diplomatic Agent/Consul General, Morocco (1925-1940)
  • Chargé d'Affaires ad interim (served as Chargé d'Affaires ad interim, Sep. 1912-Jul 1917.; )
• Davis, John William (1873-1955)
  • Ambassador Extraordinary and Plenipotentiary, United Kingdom (1918-1921)
• Crane, Richard (1882-1938)
  • Envoy Extraordinary and Minister Plenipotentiary, Czechoslovakia (1919-1921)
• *Dodge, Henry Percival (1870-1936)
  • Envoy Extraordinary and Minister Plenipotentiary, El Salvador (1907-1909)
  • Envoy Extraordinary and Minister Plenipotentiary, Honduras (1907-1909)
  • Envoy Extraordinary and Minister Plenipotentiary, Morocco (1909-1910)
  • Envoy Extraordinary and Minister Plenipotentiary, Panama (1911-1913)
  • Envoy Extraordinary and Minister Plenipotentiary, Yugoslavia (1919-1926)
  • Envoy Extraordinary and Minister Plenipotentiary, Denmark (1926-1930)
• *Dillery, Carl Edward (1930-)
  • Ambassador Extraordinary and Plenipotentiary, Kiribati (1884-1987)
  • Ambassador Extraordinary and Plenipotentiary, Fiji (1984-1987)
  • Ambassador Extraordinary and Plenipotentiary, Tonga (1984-1987)
  • Ambassador Extraordinary and Plenipotentiary, Tuvalu (1984-1987)
• Droppers, Garrett (1860-1927)
  • Envoy Extraordinary and Minister Plenipotentiary, Montenegro (1914)
  • Envoy Extraordinary and Minister Plenipotentiary, Greece (1914-1920)
• *Fletcher, Henry Prather (1873-1959)
  • Envoy Extraordinary and Minister Plenipotentiary, Chile (1909-1910)
  • Ambassador Extraordinary and Plenipotentiary, Chile (1914-1916)
  • Ambassador Extraordinary and Plenipotentiary, Mexico (1916-1919)
  • Under Secretary of State (1921-1922)
  • Ambassador Extraordinary and Plenipotentiary, Belgium (1922-1924)
  • Envoy Extraordinary and Minister Plenipotentiary, Luxembourg (1923-1924)
  • Ambassador Extraordinary and Plenipotentiary, Italy (1924-1929)
• *Garrett, John Work (1872-1942)
  • Envoy Extraordinary and Minister Plenipotentiary, Venezuela (1910-1911)
  • Envoy Extraordinary and Minister Plenipotentiary, Argentina (1911-1913)
  • Envoy Extraordinary and Minister Plenipotentiary, Luxembourg (1917-1919)
  • Envoy Extraordinary and Minister Plenipotentiary, Netherlands (1917-1919)
  • Ambassador Extraordinary and Plenipotentiary, Italy (1929-1933)
• Gary, Hampson (1873-1952)
  • Agent/Consul General, Egypt (1917-1919)
  • Envoy Extraordinary and Minister Plenipotentiary, Switzerland (1920-1921)
• Hapgood, Norman (1868-1937)
  • Envoy Extraordinary and Minister Plenipotentiary, Denmark (1919)
• Hartman, Charles Sampson (1861-1929)
  • Envoy Extraordinary and Minister Plenipotentiary, Ecuador (1913-1922)
• *Gibson, Hugh Simons (1883-1954)
  • Envoy Extraordinary and Minister Plenipotentiary, Poland (1919-1924)
  • Envoy Extraordinary and Minister Plenipotentiary, Switzerland (1924-1927)
  • Ambassador Extraordinary and Plenipotentiary, Belgium (1927-1933)
  • Envoy Extraordinary and Minister Plenipotentiary, Luxembourg (1927-1933)
  • Ambassador Extraordinary and Plenipotentiary, Brazil (1933-1936)
  • Ambassador Extraordinary and Plenipotentiary, Belgium (1937-1938)
  • Envoy Extraordinary and Minister Plenipotentiary, Luxembourg (1937-1938)
• Gonzales, William Elliott (1866-1937)
  • Envoy Extraordinary and Minister Plenipotentiary, Cuba (1913-1919)
  • Ambassador Extraordinary and Plenipotentiary, Peru (1919-1921)
• Jefferson, Benjamin Lafayette (1871-1950)
  • Envoy Extraordinary and Minister Plenipotentiary, Nicaragua (1913-1921)
• Jeffery, Robert Emmett (1875-1935)
  • Envoy Extraordinary and Minister Plenipotentiary, Uruguay (1915-1921)
• Johnson, Joseph Lowery (1874-1945)
  • Minister Resident/Consul General, Liberia (1918-1922)
• Jones, Thomas Sambola (1859-1933)
  • Envoy Extraordinary and Minister Plenipotentiary, Honduras (1918-1919)
• Maginnis, Samuel Abbot (1885-1941)
  • Envoy Extraordinary and Minister Plenipotentiary, Bolivia (1919-1921)
• McGoodwin, Preston Buford (1880-1945)
  • Envoy Extraordinary and Minister Plenipotentiary, Venezuela (1913-1921)
• McMillin, Benton (1845-1933)
  • Envoy Extraordinary and Minister Plenipotentiary, Peru (1913-1919)
  • Envoy Extraordinary and Minister Plenipotentiary, Guatemala (1919-1920)
• Lansing, Robert (1864-1928)
  • Counselor (1914-1915)
  • Secretary of State ad interim (1915)
  • Secretary of State (1915-1920)
• Long, Boaz Walton (1876-1962)
  • Envoy Extraordinary and Minister Plenipotentiary, El Salvador (1914-1917)
  • Envoy Extraordinary and Minister Plenipotentiary, Cuba (1919-1921)
  • Envoy Extraordinary and Minister Plenipotentiary, Nicaragua (1936-1938)
  • Envoy Extraordinary and Minister Plenipotentiary, Ecuador (1938)
  • Ambassador Extraordinary and Plenipotentiary, Ecuador (1942-1943)
  • Ambassador Extraordinary and Plenipotentiary, Guatemala (1943-1945)
• Long, Samuel Miller Breckinridge (1881-1958)
  • Third Assistant Secretary of State (1917-1920)
  • Ambassador Extraordinary and Plenipotentiary, Italy (1933-1936)
  • Assistant Secretary of State (1940-1944)
• Mooney, Daniel Francis (1865-1930)
  • Envoy Extraordinary and Minister Plenipotentiary, Paraguay (1914-1921)
• *Morgan, Edwin Vernon (1865-1934)
  • Envoy Extraordinary and Minister Plenipotentiary, Korea (1905)
  • Envoy Extraordinary and Minister Plenipotentiary, Cuba (1905-1910)
  • Envoy Extraordinary and Minister Plenipotentiary, Paraguay (1909-1911)
  • Envoy Extraordinary and Minister Plenipotentiary, Uruguay (1909-1911)
  • Envoy Extraordinary and Minister Plenipotentiary, Portugal (1911-1912)
  • Ambassador Extraordinary and Plenipotentiary, Brazil (1912-1933)
• Morris, Ira Nelson (1875-1942)
  • Envoy Extraordinary and Minister Plenipotentiary, Sweden (1914-1923)
• Morris, Roland Sletor (1874-1945)
  • Ambassador Extraordinary and Plenipotentiary, Japan (1917-1920)
• Page, Thomas Nelson (1853-1922)
  • Ambassador Extraordinary and Plenipotentiary, Italy (1913-1919)
• *Philip, Hoffman (1872-1951)
  • Minister Resident/Consul General, Ethiopia (1908-1910)
  • Envoy Extraordinary and Minister Plenipotentiary, Colombia (1917-1922)
  • Envoy Extraordinary and Minister Plenipotentiary, Uruguay (1922-1925)
  • Envoy Extraordinary and Minister Plenipotentiary, Iran (1925-1928)
  • Envoy Extraordinary and Minister Plenipotentiary, Norway (1930-1935)
  • Ambassador Extraordinary and Plenipotentiary, Chile (1935-1937)
• Polk, Frank Lyon (1871-1943)
  • Counselor (1915-1919)
  • Under Secretary of State (1919-1920)
  • Secretary of State ad interim (1920)
• Price, William Jennings (1873-1952)
  • Envoy Extraordinary and Minister Plenipotentiary, Panama (1913-1921)
• Reinsch, Paul Samuel (1869-1923)
  • Envoy Extraordinary and Minister Plenipotentiary, China (1913-1919)
• Russell, William Worthington (1859-1944)
  • Envoy Extraordinary and Minister Plenipotentiary, Colombia (1904-1905)
  • Envoy Extraordinary and Minister Plenipotentiary, Venezuela (1905)
  • Minister Resident/Consul General, Dominican Republic (1910)
  • Envoy Extraordinary and Minister Plenipotentiary, Dominican Republic (1911-1913)
  • Envoy Extraordinary and Minister Plenipotentiary, Dominican Republic (1915-1925)
  • Envoy Extraordinary and Minister Plenipotentiary, Thailand (1925-1927)
• Schmedemann, Albert George (1864-1946)
  • Envoy Extraordinary and Minister Plenipotentiary, Norway (1913-1921)
• Sharp, William Graves (1859-1922)
  • Ambassador Extraordinary and Plenipotentiary, France (1914-1919)
• Shea, Joseph Hooker (1863-1928)
  • Ambassador Extraordinary and Plenipotentiary, Chile (1916-1921)
• Stimson, Frederic Jesup (1855-1943)
  • Ambassador Extraordinary and Plenipotentiary, Argentina (1914-1921)
• Stovall, Pleasant Alexander (1857-1935)
  • Envoy Extraordinary and Minister Plenipotentiary, Switzerland (1913-1919)
• Vopicka, Charles Joseph (1857-1935)
  • Envoy Extraordinary and Minister Plenipotentiary, Bulgaria (1913)
  • Envoy Extraordinary and Minister Plenipotentiary, Romania (1913-1920)
  • Envoy Extraordinary and Minister Plenipotentiary, Yugoslavia (1913)
• Wallace, Hugh Campbell (1863-1931)
  • Ambassador Extraordinary and Plenipotentiary, France (1919-1921)