1Isaac McPherson to Thomas Jefferson, 3 August 1813 (Jefferson Papers)
Evans, Oliver; machinery of patented [index entry]
2Thomas Jefferson to Isaac McPherson, 13 August 1813 (Jefferson Papers)
Evans, Oliver; machinery of patented [index entry]
3Isaac McPherson to Thomas Jefferson, 28 August 1813 (Jefferson Papers)
Evans, Oliver; machinery of patented [index entry]
4Enclosure: Extract of a Letter from Jonathan Ellicott to Thomas Worthington, [ca. Jan–February 1813?] (Jefferson Papers)
Evans, Oliver; machinery of patented [index entry]
5Oliver Evans to Thomas Jefferson, 7 January 1814 (Jefferson Papers)
Evans, Oliver; machinery of patented [index entry]
6Thomas Jefferson to Oliver Evans, 16 January 1814 (Jefferson Papers)
Evans, Oliver; machinery of patented [index entry]
7Thomas Jefferson to John Staples, 25 January 1814 (Jefferson Papers)
Evans, Oliver; machinery of patented [index entry]
8Thomas Cooper to Thomas Jefferson, 31 May 1814 (Jefferson Papers)
Evans, Oliver; machinery of patented [index entry]