1John Pernier to Thomas Jefferson, 10 February 1810 (Jefferson Papers)
Pernier (Purney), John; account with M. Lewis [index entry]
2John Christoph Süverman to Thomas Jefferson, 5 May 1810 (Jefferson Papers)
Pernier (Purney), John; account with M. Lewis [index entry]
3John Christoph Süverman to Thomas Jefferson, 8 August 1810 (Jefferson Papers)
Pernier (Purney), John; account with M. Lewis [index entry]