21Thomas Jefferson to Albert Gallatin, 8 September 1816 (Jefferson Papers)
wheat; effect of weather on [index entry]
22Thomas Appleton to Thomas Jefferson, 27 September 1816 (Jefferson Papers)
wheat; effect of weather on [index entry]
23Thomas Jefferson to James Madison, 8 February 1817 (Jefferson Papers)
wheat; effect of weather on [index entry]
24Thomas Jefferson to Hugh Nelson, 9 February 1817 (Jefferson Papers)
wheat; effect of weather on [index entry]
25James Madison to Thomas Jefferson, 15 February 1817 (Jefferson Papers)
wheat; effect of weather on [index entry]
26Thomas Jefferson to Patrick Gibson, 1 April 1817 (Jefferson Papers)
wheat; effect of weather on [index entry]
27Joel Yancey to Thomas Jefferson, 13 June 1819 (Jefferson Papers)
wheat; effect of weather on [index entry]
28Joel Yancey to Thomas Jefferson, 1 July 1819 (Jefferson Papers)
wheat; effect of weather on [index entry]
29Thomas Jefferson to Bernard Peyton, [13] July 1821 (Jefferson Papers)
wheat; effect of weather on [index entry]