Principal Officers and Chiefs of Mission, by year: 1828
Note: Career Foreign Service appointees are asterisked.
- Appleton, John James (1792-1864)
- Chargé d'Affaires, Sweden (1826-1830)
- Chargé d'Affaires, Portugal (Not commissioned; nomination to be Chargé d'Affaires at Rio de Janeiro rejected by
the Senate. Appleton, however, served as Chargé d'Affaires ad interim from Jun 1820
until the Legation to Portugal at Rio de Janeiro was closed in 1821 (his last
dispatch dated Jul 12, 1821).)
- Barbour, James (1775-1842)
- Envoy Extraordinary and Minister Plenipotentiary, United Kingdom (1828-1829)
- Clay, Henry (1777-1852)
- Secretary of State (1825-1829)
- Envoy Extraordinary and Minister Plenipotentiary, Spain (1909-1913)
- Brent, Daniel Carroll (1770-1841)
- Secretary of State ad interim (1825)
- Chief Clerk (1817-1833)
- Brent, Thomas Ludwell Lee (1784-1847)
- Chargé d'Affaires, Portugal (1825-1834)
- Brown, James (1766-1835)
- Envoy Extraordinary and Minister Plenipotentiary, France (1823-1829)
- Chargé d'Affaires, Portugal (1849-1850)
- Cooley, James (1791-1828)
- Chargé d'Affaires, Peru (1826-1828)
- Everett, Alexander Hill (1790-1847)
- Chargé d'Affaires, Netherlands (1818-1824)
- Envoy Extraordinary and Minister Plenipotentiary, Spain (1825-1829)
- Commissioner, China (1845-1847)
- Forbes, John Murray (1771-1831)
- Chargé d'Affaires, Argentina (1825-1831)
- Harrison, William Henry (1773-1841)
- Envoy Extraordinary and Minister Plenipotentiary, Colombia (1828-1829)
- Hughes, Christopher (1786-1849)
- Chargé d'Affaires, no se (1819-1825)
- Chargé d'Affaires, Netherlands (1825-1830)
- Chargé d'Affaires, Sweden (1830-1841)
- Chargé d'Affaires, Netherlands (1842-1845)
- Larned, Samuel (?-?)
- Chargé d'Affaires, Chile (1828-1829)
- Chargé d'Affaires, Peru (1828-1829)
- Chargé d'Affaires, Peru (1830-1837)
- Middleton, Henry (1770-1846)
- Envoy Extraordinary and Minister Plenipotentiary, Russia (1820-1830)
- Tudor, William (1779-1830)
- Chargé d'Affaires, Brazil (1827-1830)
- Wheaton, Henry (1785-1848)
- Chargé d'Affaires, Denmark (1827-1835)
- Chargé d'Affaires, Germany (1835)
- Envoy Extraordinary and Minister Plenipotentiary, Germany (1837-1846)