1Isaac McPherson to Thomas Jefferson, 28 August 1813 (Jefferson Papers)
Ellicott, Jonathan; and O. Evans’s patent machinery [index entry]
2Enclosure: Extract of a Letter from Jonathan Ellicott to Thomas Worthington, [ca. Jan–February 1813?] (Jefferson Papers)
Ellicott, Jonathan; and O. Evans’s patent machinery [index entry]
3Thomas Jefferson to Isaac McPherson, 18 September 1813 (Jefferson Papers)
Ellicott, Jonathan; and O. Evans’s patent machinery [index entry]