61Thomas Jefferson to Samuel Brown, 28 April 1814 (Jefferson Papers)
machines; spinning jenny [index entry]
62George Sullivan to Thomas Jefferson, 15 September 1809 (Jefferson Papers)
machines; spinning jenny [index entry]
63Charles Willson Peale to Thomas Jefferson, 18 June 1815 (Jefferson Papers)
machines; spinning [index entry]
64Thomas Jefferson to John Adams, 21 January 1812 (Jefferson Papers)
machines; spinning jenny [index entry]
65Thomas Jefferson to John George Baxter, 16 July 1815 (Jefferson Papers)
machines; spinning [index entry]
66Charles Willson Peale to Thomas Jefferson, 2 May 1815 (Jefferson Papers)
machines; spinning jenny [index entry]
67I: From James Jay, 20 December 1784 (Washington Papers)
...some cases, even weaves. There are not above 3 or 4 of these Machines in England: The proprietors of them taking great care to conceal their structure, and having a Patent to secure the invention to themselves. This Machine spins faster than can be done in any other way yet known: and the threads spun by it, are much more even than can be done by the hand.