Principal Officers and Chiefs of Mission, by year: 1812

Note: Career Foreign Service appointees are asterisked.

• Adams, John Quincy (1767-1848)
  • Minister Resident, Netherlands (1794-1797)
  • Minister Plenipotentiary, Portugal (1796)
  • Minister Plenipotentiary, Germany (1797-1801)
  • Minister Plenipotentiary, Russia (1809-1814)
  • Envoy Extraordinary and Minister Plenipotentiary, United Kingdom (1815-1817)
  • Secretary of State (1817-1825)
• Graham, John (1774-1820)
  • Chief Clerk (1807-1817)
  • Secretary of State ad interim (1817)
  • Minister Plenipotentiary, Portugal (1819-1820)
• Monroe, James (1758-1831)
  • Minister Plenipotentiary, France (1794-1796)
  • Minister Plenipotentiary, United Kingdom (1803-1807)
  • Secretary of State (1811-1814)
  • Secretary of State ad interim (1814-1815)
  • Secretary of State (1815-1817)
• Sumter, Thomas (1768-1840)
  • Minister Plenipotentiary, Portugal (1809-1819)