1James Madison to Thomas Jefferson, 3 April 1812 (Jefferson Papers)
Castlereagh, Robert Stewart, Viscount; as foreign secretary [index entry]
2Patrick Gibson to Thomas Jefferson, 8 January 1814 (Jefferson Papers)
Castlereagh, Robert Stewart, Viscount; as foreign secretary [index entry]
3Thomas Leiper to Thomas Jefferson, 17 April 1814 (Jefferson Papers)
Castlereagh, Robert Stewart, Viscount; as foreign secretary [index entry]
4William H. Crawford to Thomas Jefferson, 16 June 1814 (Jefferson Papers)
Castlereagh, Robert Stewart, Viscount; as foreign secretary [index entry]
5William Duane to Thomas Jefferson, 11 August 1814 (Jefferson Papers)
Castlereagh, Robert Stewart, Viscount; as foreign secretary [index entry]
6Lafayette to Thomas Jefferson, 14 August 1814 (Jefferson Papers)
Castlereagh, Robert Stewart, Viscount; as foreign secretary [index entry]
7José Corrêa da Serra to Thomas Jefferson, 20 September 1814 (Jefferson Papers)
Castlereagh, Robert Stewart, Viscount; as foreign secretary [index entry]
8James Monroe to Thomas Jefferson, 10 July 1815 (Jefferson Papers)
Castlereagh, Robert Stewart, Viscount; as foreign secretary [index entry]
9James Monroe to Thomas Jefferson, 23 November 1818 (Jefferson Papers)
Castlereagh, Robert Stewart, Viscount; as foreign secretary [index entry]
10Thomas Appleton to Thomas Jefferson, 3 September 1821 (Jefferson Papers)
Castlereagh, Robert Stewart, Viscount; as foreign secretary [index entry]