61Gabriel Richard to Thomas Jefferson, 9 November 1809 (Jefferson Papers)
machines; spinning jenny [index entry]
62James Ronaldson to Thomas Jefferson, 26 December 1811 (Jefferson Papers)
machines; spinning wheel [index entry]
63George Sullivan to Thomas Jefferson, 15 September 1809 (Jefferson Papers)
machines; spinning jenny [index entry]
64William Thornton to Thomas Jefferson, 20 January 1812 (Jefferson Papers)
machines; spinning [index entry] machines; spinning billy [index entry]
65Enclosure: William Thornton to Thomas Jefferson, [ca. 9 May 1812] (Jefferson Papers)
machines; spinning [index entry]
66William Thornton to Thomas Jefferson, 13 July 1812 (Jefferson Papers)
machines; spinning [index entry]
67William Thornton to Thomas Jefferson, 27 June 1812 (Jefferson Papers)
machines; spinning [index entry]