1John Adams to Thomas Jefferson, 30 September 1816 (Jefferson Papers)
Dupuis, Charles François; Origine de Tous les Cultes: ou, Religion Universelle [index entry]
2John Adams to Thomas Jefferson, 4 November 1816 (Jefferson Papers)
Dupuis, Charles François; Origine de Tous les Cultes: ou, Religion Universelle [index entry]
3John Adams to Thomas Jefferson, 12 December 1816 (Jefferson Papers)
Dupuis, Charles François; Origine de Tous les Cultes: ou, Religion Universelle [index entry]
4John Adams to Thomas Jefferson, 16 December 1816 (Jefferson Papers)
Dupuis, Charles François; Origine de Tous les Cultes: ou, Religion Universelle [index entry]