1Joseph St. Leger d’Happart to Thomas Jefferson, 20 June 1812 (Jefferson Papers)
Clarkson, David Matthew; U.S. naval agent for Saint Kitts [index entry]
2Thomas Jefferson to Joseph St. Leger d’Happart, 3 August 1812 (Jefferson Papers)
Clarkson, David Matthew; U.S. naval agent for Saint Kitts [index entry]
3Joseph St. Leger d’Happart to Thomas Jefferson, 5 March 1813 (Jefferson Papers)
Clarkson, David Matthew; U.S. naval agent for Saint Kitts [index entry]