Principal Officers and Chiefs of Mission, by year: 1857

Note: Career Foreign Service appointees are asterisked.

• Angel, Benjamin Franklin (1815-1894)
  • Minister Resident, Sweden (1857-1861)
• Appleton, John (1815-1864)
  • Chief Clerk (1848)
  • Chargé d'Affaires, Bolivia (1848-1849)
  • Assistant Secretary of State (1857-1860)
  • Envoy Extraordinary and Minister Plenipotentiary, Russia (1860-1861)
• Bedinger, Henry (1812-1858)
  • Chargé d'Affaires, Denmark (1853)
  • Minister Resident, Denmark (1854-1858)
• Belmont, August (1816-1890)
  • Chargé d'Affaires, Netherlands (1853)
  • Minister Resident, Netherlands (1854-1857)
• Bigler, John (1805-1871)
  • Envoy Extraordinary and Minister Plenipotentiary, Chile (1857-1861)
• Bowlin, James Butler (1804-1874)
  • Minister Resident, Colombia (1854-1857)
• Cass, Lewis (1814-1878)
  • Chargé d'Affaires, Holy See (1849)
  • Minister Resident, Holy See (1854-1858)
• Cass, Lewis (1782-1866)
  • Envoy Extraordinary and Minister Plenipotentiary, France (1836-1842)
  • Secretary of State (1857-1860)
• Dallas, George Mifflin (1792-1864)
  • Envoy Extraordinary and Minister Plenipotentiary, Russia (1837-1839)
  • Envoy Extraordinary and Minister Plenipotentiary, United Kingdom (1856-1861)
• Dana, John Winchester (1808-1867)
  • Chargé d'Affaires, Bolivia (1853-1854)
  • Minister Resident, Bolivia (1854-1859)
• De Leon, Edwin (1818-1891)
  • Agent/Consul General, Egypt (1853-1861)
• Dodge, Augustus Caesar (1812-1883)
  • Envoy Extraordinary and Minister Plenipotentiary, Spain (1855-1859)
• Eames, Charles (1812-1867)
  • Chargé d'Affaires, Venezuela (1854)
  • Minister Resident, Venezuela (1854-1858)
• Ellsworth, Henry William (1814-1864)
  • Chargé d'Affaires, Sweden (1845-1861)
• Fay, Theodore Sedgwick (1807-1898)
  • Ambassador Extraordinary and Plenipotentiary, Switzerland (1853-1861)
• Gregg, David L. (?-1868)
  • Commissioner, Hawaii (1853-1858)
• Jackson, Henry Rootes (1820-1898)
  • Chargé d'Affaires, Austria (1853)
  • Minister Resident, Austria (1854-1858)
  • Envoy Extraordinary and Minister Plenipotentiary, Mexico (1885-1886)
• Lamar, Mirabeau Buonaparte (1798-1859)
  • Minister Resident, Argentina (1857)
  • Envoy Extraordinary and Minister Plenipotentiary, Nicaragua (1857)
  • Minister Resident, Costa Rica (1858)
  • Minister Resident, Nicaragua (1858-1859)
• Marcy, William Learned (1786-1857)
  • Secretary of State (1853-1857)
• Mason, John Young (1799-1859)
  • Envoy Extraordinary and Minister Plenipotentiary, France (1853-1859)
• Meade, Richard Kidder (1803-1862)
  • Chargé d'Affaires, Italy (1853)
  • Envoy Extraordinary and Minister Plenipotentiary, Brazil (1857-1861)
• Murphy, Henry Cruse (1810-1882)
  • Minister Resident, Netherlands (1857-1861)
• O'Sullivan, John Louis (1813-1895)
  • Chargé d'Affaires, Portugal (1854)
  • Minister Resident, Portugal (1854-1858)
• Owen, Robert Dale (1801-1877)
  • Chargé d'Affaires, Two Sicilies (1853)
  • Minister Resident, Two Sicilies (1854-1858)
  • Ambassador Extraordinary and Plenipotentiary, Two Sicilies (1856)
• Parker, Peter (1804-1888)
  • Commissioner, China (1855-1857)
• Peden, James A. (?-?)
  • Minister Resident, Argentina (1854-1857)
  • Minister Resident, Argentina (1854-1858)
• Reed, William Bradford (1806-1876)
  • Envoy Extraordinary and Minister Plenipotentiary, China (1857-1858)
• Schroeder, Francis (?-?)
  • Chargé d'Affaires, Sweden (1849-1850)
  • Minister Resident, Sweden (1854-1857)
• Seymour, Thomas Hart (1807-1868)
  • Envoy Extraordinary and Minister Plenipotentiary, Russia (1853-1858)
• Spence, Carroll (1818-1896)
  • Minister Resident, Turkey (1853-1857)
• Starkweather, David Austin (1802-1876)
  • Envoy Extraordinary and Minister Plenipotentiary, Chile (1854-1857)
• Thomas, John Addison (1811-1858)
  • Assistant Secretary of State (1855-1857)
• Trousdale, William (1790-1872)
  • Envoy Extraordinary and Minister Plenipotentiary, Brazil (1853-1857)
• Venable, William Edward (1804-1857)
  • Minister Resident, Guatemala (1857)
• Vroom, Peter Dumont (1791-1873)
  • Envoy Extraordinary and Minister Plenipotentiary, Germany (1853-1857)
• White, Philo (1796-1874)
  • Chargé d'Affaires, Ecuador (1853)
  • Minister Resident, Ecuador (1854-1858)
• Wright, Joseph Albert (1810-1867)
  • Envoy Extraordinary and Minister Plenipotentiary, Germany (1857-1861)
  • Envoy Extraordinary and Minister Plenipotentiary, Germany (1865-1867)