Letter listing for 1750–1759
- Claude Adrien Helvétius to Anne Catherine Helvétius [née de Ligniville d'Autricourt], June / July 1754
- Claude Adrien Helvétius to Anne Catherine Helvétius [née de Ligniville d'Autricourt], June / July 1754
- père Pierre Robert Le Cornier de Cideville, abbé Cideville to Voltaire [François Marie Arouet], 30 June 1754
- Voltaire [François Marie Arouet] to Luise Dorothea, Herzogin von Sachsen-Gotha-Altenburg [née von Sachsen-Meiningen], 30 June 1754
- Voltaire [François Marie Arouet] to Jean François Bruges, 1754
- Voltaire [François Marie Arouet] to François Louis Defresnay, 1754
- Jean Jacques Rousseau to Jacques François Deluc, Jean André Deluc and Guillaume Antoine Deluc, early July 1754
- Jean Jacques Rousseau to Antoine Claude Briasson, July 1754 [now missing]
- Jean Jacques Rousseau to Georges Louis Le Sage, fils, 1 July 1754
- Voltaire [François Marie Arouet] to Cosimo Alessandro Collini, 2 July 1754
- Voltaire [François Marie Arouet] to Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy], 2 July 1754
- Lords Commissioners of Trade and Foreign Plantations [Board of Trade] to Robert Dinwiddie, 3 July 1754
- Jeanne Grâce Bosc Du Bouchet, comtesse d’Argental to [unknown], 4 July 1754
- [unknown] to Henri Louis Lekain, 5 July 1754
- Marie Louise Denis [née Mignot] to père Pierre Robert Le Cornier de Cideville, abbé Cideville, 6 July 1754
