1John Adams to Thomas Jefferson, 22 June 1815 (Jefferson Papers)
religion; Catholicism [index entry]
2John Adams to Thomas Jefferson, 24 August 1815 (Jefferson Papers)
religion; Catholicism [index entry]
3Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 18 August 1816 (Jefferson Papers)
religion; Catholicism [index entry]
4John F. Oliveira Fernandes to Thomas Jefferson, 29 January 1817 (Jefferson Papers)
religion; Catholicism [index entry]