1Thomas Jefferson to George Washington Jeffreys, 3 March 1817 (Jefferson Papers)
Great Britain; agriculture in [index entry]
2Thomas Feeling to Thomas Jefferson, 12 December 1817 (Jefferson Papers)
Great Britain; agriculture in [index entry]
3Anthony Dey to Thomas Jefferson, 20 November 1821 (Jefferson Papers)
Great Britain; agriculture in [index entry]
4Nicholas Biddle to Thomas Jefferson, 9 February 1822 (Jefferson Papers)
Great Britain; agriculture in [index entry]