1866 - Principals and Chiefs Chronological
Listing - People - Department History
Principal Officers and Chiefs of Mission, by Year: 1866
NOTE TO READERS
Updates to the Principal Officers and Chiefs of Mission database are currently suspended. For information about the Department’s current and recent leadership, we recommend visiting the Department of State homepage’s Biographies of Senior Officials and List of U.S. Ambassadors.
Notice posted on January 12, 2024.
Last
updated March 14, 2024.
Note: Career Foreign Service appointees are asterisked.
- Charles Francis Adams (1807–1886)
- Envoy Extraordinary and Minister Plenipotentiary, United Kingdom (1861–1868)
- Alexander Asboth (1811–1868)
- Minister Resident, Argentina (1866–1868)
- Minister Resident, Uruguay (1867–1868)
- John Bigelow (1817–1911)
- Envoy Extraordinary and Minister Plenipotentiary, France (1865–1866)
- Anson Burlingame (1820–1870)
- Envoy Extraordinary and Minister Plenipotentiary, China (1861–1867)
- Envoy Extraordinary and Minister Plenipotentiary, Austria (1861)
- Allan A. Burton (1820–1878)
- Minister Resident, Colombia (1861–1866)
- Minister Resident, Colombia (1861)
- James Hepburn Campbell (1820–1895)
- Minister Resident, Sweden (1864–1867)
- Minister Resident, Colombia (1866)
- Lewis Davis Campbell (1811–1882)
- Envoy Extraordinary and Minister Plenipotentiary, Mexico (1866)
- Cassius Marcellus Clay (1810–1903)
- Envoy Extraordinary and Minister Plenipotentiary, Spain (1861)
- Envoy Extraordinary and Minister Plenipotentiary, Russia (1861–1862)
- Envoy Extraordinary and Minister Plenipotentiary, Russia (1863–1869)
- Thomas Hart Clay (1803–1871)
- Minister Resident, Nicaragua (1862–1863)
- Minister Resident, Honduras (1863–1866)
- William Turner Coggeshall (1824–1867)
- Minister Resident, Ecuador (1866–1867)
- Erastus Dean Culver (1803–1889)
- Minister Resident, Venezuela (1862–1866)
- Andrew B. Dickinson (1801–1873)
- Minister Resident, Nicaragua (1861–1863)
- Minister Resident and Extraordinary, Nicaragua (1863–1869)
- John Adams Dix (1798–1879)
- Minister Resident, Netherlands (1866)
- Envoy Extraordinary and Minister Plenipotentiary, France (1866–1869)
- Hugh Boyle Ewing (1826–1905)
- Minister Resident, Netherlands (1866–1870)
- Charles Hale (1831–1882)
- Agent/Consul General, Egypt (1864–1870)
- Assistant Secretary of State (1872–1873)
- John Parker Hale (1806–1873)
- Envoy Extraordinary and Minister Plenipotentiary, Spain (1865–1869)
- Allen A. Hall (?–1867)
- Chargé d’Affaires, Venezuela (1841–1844)
- Minister Resident, Bolivia (1863–1867)
- Abraham Hanson (1818–1866)
- Commissioner and Consul General, Liberia (1863–1866)
- George Harrington (1815–1892)
- Minister Resident, Switzerland (1865–1869)
- James E. Harvey (1820–)
- Minister Resident, Portugal (1861–1869)
- Frederick (Friedrich) Hassaurek (1831–1885)
- Minister Resident, Ecuador (1861–1866)
- Alvin Peterson Hovey (1821–1891)
- Envoy Extraordinary and Minister Plenipotentiary, Peru (1865–1870)
- William Hunter (1805–1886)
- Chief Clerk (1852–1855)
- Secretary of State ad interim (1853)
- Assistant Secretary of State (1855)
- Secretary of State ad interim (1860)
- Second Assistant Secretary of State (1866–1886)
- Judson Kilpatrick (1836–1881)
- Envoy Extraordinary and Minister Plenipotentiary, Chile (1865–1870)
- Envoy Extraordinary and Minister Plenipotentiary, Chile (1881)
- Rufus King (1814–1876)
- Minister Resident, Holy See (1861)
- Minister Resident, Holy See (1863–1867)
- Robert Crothers Kirk (1821–1898)
- Minister Resident, Argentina (1862–1866)
- Minister Resident, Argentina (1869–1871)
- Minister Resident, Uruguay (1869–1870)
- Albert Gallatin Lawrence (1836–1887)
- Minister Resident, Costa Rica (1866–1868)
- George Perkins Marsh (1801–1882)
- Minister Resident, Turkey (1849–1853)
- Envoy Extraordinary and Minister Plenipotentiary, Italy (1861–1882)
- James McBride (1802–1875)
- Minister Resident, Hawaii (1863–1866)
- Edward Moody McCook (1833–1909)
- Minister Resident, Hawaii (1866–1868)
- John McGinnis Jr. (?–)
- Minister Resident, Sweden (1866)
- Edward Joy Morris (1815–1881)
- Chargé d’Affaires, Kingdom of the Two Sicilies (1850–1853)
- Minister Resident, Turkey (1861–1870)
- John Lothrop Motley (1814–1877)
- Ambassador Extraordinary and Plenipotentiary, Austria (1861–1867)
- Envoy Extraordinary and Minister Plenipotentiary, United Kingdom (1869–1870)
- Thomas Henry Nelson (1824–1896)
- Envoy Extraordinary and Minister Plenipotentiary, Chile (1861–1866)
- Envoy Extraordinary and Minister Plenipotentiary, Mexico (1869–1873)
- James Rudolph Partridge (1823–1884)
- Minister Resident, Honduras (1862)
- Minister Resident, El Salvador (1863–1866)
- Minister Resident, Venezuela (1869–1870)
- Envoy Extraordinary and Minister Plenipotentiary, Brazil (1871–1877)
- Envoy Extraordinary and Minister Plenipotentiary, Peru (1882)
- Minister Resident, Nicaragua (Not commissioned; nomination withdrawn before the Senate acted upon it.)
- Henry Everard Peck (1821–1867)
- Commissioner and Consul General, Haiti (1865–1866)
- Minister Resident/Consul General, Haiti (1866–1867)
- James Shepard Pike (1811–1882)
- Minister Resident, Netherlands (1861–1866)
- Albert Rhodes (1840–1894)
- Chargé d’Affaires, Netherlands (1866)
- Charles N. Riotte (1814–1887)
- Minister Resident, Costa Rica (1861–1867)
- Minister Resident, Nicaragua (1869–1873)
- Minister Resident, Costa Rica (Not commissioned; nomination tabled by the Senate.)
- Richard Hilaire Rousseau (1815–1872)
- Minister Resident, Honduras (1866–1869)
- Henry Shelton Sanford (1823–1891)
- Minister Resident, Belgium (1861–1869)
- Envoy Extraordinary and Minister Plenipotentiary, Belgium (Nomination of December 17, 1866, rejected by the Senate.)
- Envoy Extraordinary and Minister Plenipotentiary, Belgium (Nomination of March 8, 1867, rejected by the Senate.)
- Minister Resident, Belgium (Not commissioned; nomination not confirmed by the Senate.)
- Minister Resident, Spain (Not commissioned; nomination not confirmed by the Senate.)
- Frederick William Seward (1830–1915)
- Assistant Secretary of State (1861–1869)
- Assistant Secretary of State (1877–1879)
- William Henry Seward (1801–1872)
- Secretary of State (1861–1869)
- John Seys (1799–1872)
- Minister Resident/Consul General, Liberia (1866–1870)
- Daniel Edgar Sickles (1825–1914)
- Minister Resident, Netherlands (1866)
- Envoy Extraordinary and Minister Plenipotentiary, Spain (1869–1874)
- Robert Bruce Van Valkenburgh (1821–1888)
- Minister Resident, Japan (1866–1869)
- Fitz Henry Warren (1816–1878)
- Minister Resident, Guatemala (1865–1869)
- Charles Ames Washburn (1822–1889)
- Commissioner, Paraguay (1861–1863)
- Minister Resident, Paraguay (1863–1868)
- James Watson Webb (1802–1884)
- Chargé d’Affaires, Austria (1849–1850)
- Envoy Extraordinary and Minister Plenipotentiary, Brazil (1861–1869)
- Minister Resident, Turkey (1861)
- Alpheus Starkey Williams (1810–1878)
- Minister Resident, El Salvador (1866–1869)
- James Wilson (1825–1867)
- Minister Resident, Venezuela (1866–1867)
- Joseph Albert Wright (1810–1867)
- Envoy Extraordinary and Minister Plenipotentiary, Germany (1857–1861)
- Envoy Extraordinary and Minister Plenipotentiary, Germany (1865–1867)
- George Helm Yeaman (1829–1908)
- Minister Resident, Denmark (1865–1870)