1John Adams to Thomas Jefferson, with postscript by Abigail Adams, 20 June 1815 (Jefferson Papers)
Adams, John; on human progress [index entry]
2John Adams to Thomas Jefferson, 16 July 1814 (Jefferson Papers)
Adams, John; on human progress [index entry]
3John Adams to Thomas Jefferson, 24 August 1815 (Jefferson Papers)
Adams, John; on human progress [index entry]
4John Adams to Thomas Jefferson, 19 June 1815 (Jefferson Papers)
Adams, John; on human progress [index entry]
5John Adams to Thomas Jefferson, 2 February 1817 (Jefferson Papers)
Adams, John; on human progress [index entry]
6John Adams to Thomas Jefferson, 15 July 1813, with Postscript from Abigail Adams to Thomas Jefferson, [ca. 15 July 1813] (Jefferson Papers)
Adams, John; on human progress [index entry]
7John Adams to Thomas Jefferson, 28 June 1813 (Jefferson Papers)
Adams, John; on human progress [index entry]
8John Adams to Thomas Jefferson, 3 December 1813 (Jefferson Papers)
Adams, John; on human progress [index entry]