1Thomas Jefferson’s Constitution for Proposed Agricultural Society of Albemarle, [ca. 1 February 1811] (Jefferson Papers)
agriculture; threshing machines [index entry]
2Benjamin B. Ford to Thomas Jefferson, 17 November 1809 (Jefferson Papers)
agriculture; threshing machines [index entry]
3Cunningham Harris to Thomas Jefferson, 30 September 1812 (Jefferson Papers)
agriculture; threshing machines [index entry]
4Alexander Hepburn’s List of Materials for Work at Poplar Forest [ca. 8 October 1819] (Jefferson Papers)
agriculture; threshing machines [index entry]
5Thomas Jefferson to Alexander Hepburn, 7 August 1819 (Jefferson Papers)
agriculture; threshing machines [index entry]
6Thomas Jefferson to Cunningham Harris, 6 November 1812 (Jefferson Papers)
agriculture; threshing machines [index entry]
7Thomas Jefferson to James Madison, 9 August 1810 (Jefferson Papers)
agriculture; threshing machines [index entry]
8Thomas Jefferson’s Notes on Alexander Hepburn’s Poplar Forest Materials List, [ca. 8 October 1819] (Jefferson Papers)
agriculture; threshing machines [index entry]
9Thomas Jefferson to John H. Peyton, 17 December 1819 (Jefferson Papers)
agriculture; threshing machines [index entry]
10Thomas Jefferson to Archibald Thweatt, 16 March 1817 (Jefferson Papers)
agriculture; threshing machines [index entry]