1Joseph Milligan to Thomas Jefferson, 9 April 1817 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
2Joseph Milligan to Thomas Jefferson, 30 July 1817 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
3David Bailie Warden to Thomas Jefferson, [ca. 12–22 August 1817] (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
4Joseph Milligan to Thomas Jefferson, 6 February 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
5Destutt de Tracy to Thomas Jefferson, 11 April 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
6Joseph Milligan to Thomas Jefferson, 11 May 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
7Joseph Milligan to Thomas Jefferson, 17 October 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
8Joseph Milligan to Thomas Jefferson, 30 October 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
9Joseph Milligan to Thomas Jefferson, 20 November 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
10William A. Burwell to Thomas Jefferson, 28 November 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]