1Oliver Evans to Thomas Jefferson, 29 January 1814 (Jefferson Papers)
Congress, U.S.; Memorial to Congress on Evans’ Patent [index entry]
2Oliver Evans to Thomas Jefferson, 7 January 1814 (Jefferson Papers)
Congress, U.S.; Memorial to Congress on Evans’ Patent [index entry]
3Thomas Jefferson to Thomas Cooper, 16 January 1814 (Jefferson Papers)
Congress, U.S.; Memorial to Congress on Evans’ Patent [index entry]
4Isaac McPherson to Thomas Jefferson, 2 January 1814 (Jefferson Papers)
Congress, U.S.; Memorial to Congress on Evans’ Patent [index entry]