1Petition of Jonathan Williams, Jr., to the Patent Board, 20 November 1792 (Jefferson Papers)
Northern Liberties of Philadelphia, 20 Nov. 1792 . Having been “formerly engaged in the business...
2Directions for Building the Great Clock, [1792–1793] (Jefferson Papers)
The great clock . MS ( DLC : TJ Papers, 233: 41588); written entirely in TJ’s hand on a small...