1Thomas Jefferson to James Madison, 26 November 1809 (Jefferson Papers)
Pernier (Purney), John; account with M. Lewis [index entry]
2John Pernier to Thomas Jefferson, 10 February 1810 (Jefferson Papers)
Pernier (Purney), John; account with M. Lewis [index entry]
3John Christoph Süverman to Thomas Jefferson, 5 May 1810 (Jefferson Papers)
Pernier (Purney), John; account with M. Lewis [index entry]
4John Christoph Süverman to Thomas Jefferson, 8 August 1810 (Jefferson Papers)
Pernier (Purney), John; account with M. Lewis [index entry]
5Thomas Jefferson to William D. Meriwether, 21 August 1810 (Jefferson Papers)
Pernier (Purney), John; account with M. Lewis [index entry]
6Thomas Jefferson to John Christoph Süverman, 23 September 1810 (Jefferson Papers)
Pernier (Purney), John; account with M. Lewis [index entry]