1Isaac McPherson to Thomas Jefferson, 3 August 1813 (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]
2Isaac McPherson to Thomas Jefferson, 28 August 1813 (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]
3Enclosure: Extract of a Letter from Jonathan Ellicott to Thomas Worthington, [ca. Jan–February 1813?] (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]
4Enclosure: Oliver Evans’s Petition to the United States Congress, [by 28 December 1813] (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]
5Oliver Evans to Thomas Jefferson, 7 January 1814 (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]
6Thomas Jefferson to Oliver Evans, 16 January 1814 (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]
7Oliver Evans to Thomas Jefferson, 29 January 1814 (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]
8Thomas Cooper to Thomas Jefferson, 31 May 1814 (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]
9Thomas Jefferson to Charles Willson Peale, 13 June 1815 (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]
10John Wharton (1771–1845) to Thomas Jefferson, 8 July 1818 (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]
11Thomas Jefferson to John Wharton (1771–1845), 10 July 1818 (Jefferson Papers)
Evans, Oliver; asserts patent rights [index entry]