1John Adams to Thomas Jefferson, 26 May 1817 (Jefferson Papers)
Portugal; and Brazil [index entry]
2Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 26 May 1815 (Jefferson Papers)
John, Prince Regent (later John VI, king of Portugal and Brazil) [index entry] Portugal; and Brazil
3Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 18 August 1816 (Jefferson Papers)
Portugal; and Brazil [index entry]
4Francis W. Gilmer to Thomas Jefferson, 24 January 1820 (Jefferson Papers)
John, Prince Regent (later John VI, king of Portugal and Brazil) [index entry]
5Thomas Jefferson to Francis W. Gilmer, 29 November 1820 (Jefferson Papers)
Portugal; and Brazil [index entry]
6Thomas Jefferson to José Corrêa da Serra, 5 June 1816 (Jefferson Papers)
John, Prince Regent (later John VI, king of Portugal and Brazil) [index entry]
7Thomas Jefferson to Lafayette, 14 May 1817 (Jefferson Papers)
Portugal; and Brazil [index entry]
8Thomas Jefferson to Thomas Sumter, 23 July 1821 (Jefferson Papers)
John VI, king of Portugal and Brazil; court in Brazil [index entry]
9Thomas Jefferson to James Madison, 29 November 1820 (Jefferson Papers)
Portugal; and Brazil [index entry]
10James Monroe to Thomas Jefferson, 23 August 1820 (Jefferson Papers)
Portugal; and Brazil [index entry]