1John Wyche to Thomas Jefferson, 19 March 1809 (Jefferson Papers)
Brunswick County; Westwardmill Library Society [index entry]
2Thomas Jefferson to John Wyche, 19 May 1809 (Jefferson Papers)
Brunswick County; Westwardmill Library Society [index entry]
3John Wyche to Thomas Jefferson, 7 September 1809 (Jefferson Papers)
Brunswick County; Westwardmill Library Society [index entry]