1Peter S. Du Ponceau to Thomas Jefferson, 5 December 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
2Peter S. Du Ponceau to Thomas Jefferson, 24 January 1818 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
3Peter S. Du Ponceau to Thomas Jefferson, 17 February 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]
5Benjamin Harrison to Thomas Jefferson, 14 December 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
6Thomas Jefferson to Benjamin Harrison, 17 January 1818 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
7Thomas Jefferson to Wilson Cary Nicholas, 16 October 1816 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
8Thomas Jefferson to Benjamin Harrison, 26 June 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
9Thomas Jefferson to Wilson Cary Nicholas, 19 March 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
10Thomas Jefferson to Wilson Cary Nicholas, 10 June 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
11Thomas Jefferson to Peter S. Du Ponceau, 6 November 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
12Thomas Jefferson to Peter S. Du Ponceau, 26 January 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
13Thomas Jefferson to Peter S. Du Ponceau, 30 December 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
14Wilson Cary Nicholas to Thomas Jefferson, 16 June 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
15Wilson Cary Nicholas to Thomas Jefferson, 2 April 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]
16John Vaughan to Thomas Jefferson, 30 July 1817 (Jefferson Papers)
The Secret History of the Line (W. Byrd [1674–1744]) [index entry]