1Benjamin Austin to Thomas Jefferson, 11 December 1815 (Jefferson Papers)
Notes on the State of Virginia (Thomas Jefferson); and manufacturing [index entry]
2Thomas Jefferson to Benjamin Austin, 9 January 1816 (Jefferson Papers)
Notes on the State of Virginia (Thomas Jefferson); and manufacturing [index entry]
3Anonymous to Thomas Jefferson, [ca. 6 March 1816] (Jefferson Papers)
Notes on the State of Virginia (Thomas Jefferson); and manufacturing [index entry]