1Peter S. Du Ponceau to Thomas Jefferson, 14 November 1815 (Jefferson Papers)
Byrd, William (1674–1744); as boundary commissioner [index entry]
2Thomas Jefferson to Peter S. Du Ponceau, 22 January 1816 (Jefferson Papers)
Byrd, William (1674–1744); as boundary commissioner [index entry]
3Thomas Jefferson to Wilson Cary Nicholas, 19 April 1816 (Jefferson Papers)
Byrd, William (1674–1744); as boundary commissioner [index entry]
4Thomas Jefferson’s Notes on Early Career (the so-called “Autobiography”), [6 January–29 July 1821], with editorial note … (Jefferson Papers)
Byrd, William (1674–1744); as boundary commissioner [index entry]