1To Benjamin Franklin from ——— Bertin, [before 9 May 1778] (Franklin Papers)
AL : American Philosophical Society Mde. Bertin prie Messieurs Francklin et Lée de luy faire...
2From Benjamin Franklin to Caroline (Charlotte)-Bertrande Chapelle de Jumilhac-Cubjac Bertin, [after 1 March 1783] (Franklin Papers)
AL (draft): Library of Congress Mr Franklin presents his respectful Compliments to Madame...