1Giovanni Carmignani to Thomas Jefferson, 7 April 1816 (Jefferson Papers)
Viviani, Niccolo; governor of Pisa [index entry]
2Thomas Appleton to Thomas Jefferson, 15 April 1816 (Jefferson Papers)
Viviani, Niccolo; governor of Pisa [index entry]
3Enclosure: Will of Philip Mazzei, 3 December 1814 (Jefferson Papers)
Viviani, Niccolo; governor of Pisa [index entry]