11Thomas Jefferson to Isaac McPherson, 18 September 1813 (Jefferson Papers)
patents; of O. Evans [index entry]
12Thomas Jefferson to Isaac McPherson, 13 August 1813 (Jefferson Papers)
patents; of O. Evans [index entry]
13Thomas Jefferson to Charles Willson Peale, 13 June 1815 (Jefferson Papers)
patents; of O. Evans [index entry]
14Thomas Jefferson to John Staples, 25 January 1814 (Jefferson Papers)
patents; of O. Evans [index entry]
15Enclosure: Oliver Evans’s Petition to the United States Congress, [by 28 December 1813] (Jefferson Papers)
patents; of O. Evans [index entry]
16Thomas Jefferson to John Wharton (1771–1845), 10 July 1818 (Jefferson Papers)
patents; of O. Evans [index entry]
17Enclosure: Extract of a Letter from Jonathan Ellicott to Thomas Worthington, [ca. Jan–February 1813?] (Jefferson Papers)
patents; of O. Evans [index entry]