1Peter S. Du Ponceau to Thomas Jefferson, 17 February 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
2Wilson Cary Nicholas to Thomas Jefferson, 2 April 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
3Wilson Cary Nicholas to Thomas Jefferson, 16 June 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
4Benjamin Harrison to Thomas Jefferson, 11 July 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
5John Vaughan to Thomas Jefferson, 30 July 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
6Peter S. Du Ponceau to Thomas Jefferson, 5 December 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
7Benjamin Harrison to Thomas Jefferson, 14 December 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
8Peter S. Du Ponceau to Thomas Jefferson, 24 January 1818 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]