1André Thoüin to Thomas Jefferson, 7 December 1811 (Jefferson Papers)
Thoüin, André; on grafting [index entry]
2José Corrêa da Serra to Thomas Jefferson, 6 March 1812 (Jefferson Papers)
Thoüin, André; on grafting [index entry]
3Thomas Jefferson to José Corrêa da Serra, 17 April 1812 (Jefferson Papers)
Thoüin, André; on grafting [index entry]
4Thomas Jefferson to André Thoüin, 14 December 1813 (Jefferson Papers)
Thoüin, André; on grafting [index entry]