1André Thoüin to Thomas Jefferson, 7 December 1811 (Jefferson Papers)
Corrêa da Serra, José; letter of introduction for, from A. Thoüin [index entry]
2Thomas Jefferson to André Thoüin, 14 December 1813 (Jefferson Papers)
Corrêa da Serra, José; letter of introduction for, from A. Thoüin [index entry]