1John Moody to Thomas Jefferson, January 1812 (Jefferson Papers)
patents; of O. Evans [index entry]
2Isaac McPherson to Thomas Jefferson, 3 August 1813 (Jefferson Papers)
patents; of O. Evans [index entry]
3Thomas Jefferson to Isaac McPherson, 13 August 1813 (Jefferson Papers)
patents; of O. Evans [index entry]
4Isaac McPherson to Thomas Jefferson, 28 August 1813 (Jefferson Papers)
patents; of O. Evans [index entry]
5Enclosure: Extract of a Letter from Jonathan Ellicott to Thomas Worthington, [ca. Jan–February 1813?] (Jefferson Papers)
patents; of O. Evans [index entry]
6Thomas Jefferson to Isaac McPherson, 18 September 1813 (Jefferson Papers)
patents; of O. Evans [index entry]
7Isaac McPherson to Thomas Jefferson, 2 January 1814 (Jefferson Papers)
patents; of O. Evans [index entry]
8Oliver Evans to Thomas Jefferson, 7 January 1814 (Jefferson Papers)
patents; of O. Evans [index entry]
9Enclosure: Oliver Evans’s Petition to the United States Congress, [by 28 December 1813] (Jefferson Papers)
patents; of O. Evans [index entry]
10Thomas Jefferson to Thomas Cooper, 16 January 1814 (Jefferson Papers)
patents; of O. Evans [index entry]