1John Adams to Thomas Jefferson, 28 June 1812 (Jefferson Papers)
Adams, John; on Plato [index entry]
2John Adams to Thomas Jefferson, 15 September 1813 (Jefferson Papers)
Adams, John; on Plato [index entry]
3John Adams to Thomas Jefferson, 25 December 1813 (Jefferson Papers)
Adams, John; on Plato [index entry]
4John Adams to Thomas Jefferson, 16 July 1814 (Jefferson Papers)
Adams, John; on Plato [index entry]
5John Adams to Thomas Jefferson, 3 September 1816 (Jefferson Papers)
Adams, John; on Plato [index entry]
6John Adams to Thomas Jefferson, 10 October 1817 (Jefferson Papers)
Adams, John; on Plato [index entry]