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