1Hugh Holmes to Thomas Jefferson, 10 March 1819 (Jefferson Papers)
agriculture; corn-shelling machines [index entry]
2Thomas Jefferson to Hugh Holmes, 4 March 1819 (Jefferson Papers)
agriculture; corn-shelling machines [index entry]
3Thomas Jefferson to Charles Willson Peale, 13 June 1815 (Jefferson Papers)
agriculture; corn-shelling machines [index entry]
4Thomas Jefferson to Charles Willson Peale, 21 March 1815 (Jefferson Papers)
agriculture; corn-shelling machines [index entry]
5Thomas Jefferson’s Estimate of Income and Expenses, 25 June 1819 (Jefferson Papers)
agriculture; corn-shelling machines [index entry]
6Charles Willson Peale to Thomas Jefferson, 2 May 1815 (Jefferson Papers)
agriculture; corn-shelling machines [index entry]
7Charles Willson Peale to Thomas Jefferson, 28 December 1813 (Jefferson Papers)
agriculture; corn-shelling machines [index entry]