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]
3Isaac McPherson to Thomas Jefferson, 28 August 1813 (Jefferson Papers)
patents; of O. Evans [index entry]
4Isaac McPherson to Thomas Jefferson, 2 January 1814 (Jefferson Papers)
patents; of O. Evans [index entry]
5Oliver Evans to Thomas Jefferson, 7 January 1814 (Jefferson Papers)
patents; of O. Evans [index entry]
6Oliver Evans to Thomas Jefferson, 29 January 1814 (Jefferson Papers)
patents; of O. Evans [index entry]
7Thomas Cooper to Thomas Jefferson, 31 May 1814 (Jefferson Papers)
patents; of O. Evans [index entry]