1John Vaughan to Thomas Jefferson, 13 March 1816 (Jefferson Papers)
Treasury Department, U.S.; treasury notes [index entry]
2John Vaughan to Thomas Jefferson, 26 February 1816 (Jefferson Papers)
Treasury Department, U.S.; treasury notes [index entry]
3John Vaughan to Thomas Jefferson, 19 March 1815 (Jefferson Papers)
Treasury Department, U.S.; treasury notes [index entry]
4John Vaughan to Thomas Jefferson, 24 March 1815 (Jefferson Papers)
Treasury Department, U.S.; treasury notes [index entry]