1Enclosure: Thomas Appleton’s Notes on Lupinella Grass Seed, [ca. 5 March 1817] (Jefferson Papers)
wheat; as crop [index entry]
2Thomas Jefferson to David Higginbotham, 26 May 1817 (Jefferson Papers)
wheat; as crop [index entry]
3Thomas Feeling to Thomas Jefferson, 12 December 1817 (Jefferson Papers)
wheat; as crop [index entry]
4Enclosure: Amos Hamlin’s Meteorological Observations, [by 12 January 1818] (Jefferson Papers)
wheat; as crop [index entry]
5Enclosure: Thomas Jefferson’s Summary of Weather Observations, 1810–1816, [ca. 11 April 1818] (Jefferson Papers)
wheat; as crop [index entry]
6Salma Hale to David Hale, 5 May 1818 with postscript dated 7 May 1818 (Jefferson Papers)
wheat; as crop [index entry]
7Salma Hale to Arthur Livermore, 16 May 1818 (Jefferson Papers)
wheat; as crop [index entry]
8Thomas A. Digges to Thomas Jefferson, 30 May 1818 (Jefferson Papers)
wheat; as crop [index entry]
9Fontaine Maury to Thomas Jefferson, 14 February 1819 (Jefferson Papers)
wheat; as crop [index entry]
10Enclosure: Observations on Talavera Wheat by an Unidentified Gentleman, 20 September 1818 (Jefferson Papers)
wheat; as crop [index entry]