Letter listing for 1760–1769
- Voltaire [François Marie Arouet] to Gabriel Cramer, March / April 1769
- Voltaire [François Marie Arouet] to Louise Suzanne Gallatin [née Vaudenet], March / April 1769
- Françoise Poivre [née Robin] to Jacques Henri Bernardin de Saint-Pierre, April 1769
- Marie Anne Alissan de La Tour [née Merlet de Foussomme] to Jean Jacques Rousseau, 1 April 1769
- père Louis Antoine Sophie de Fronsac Vignerot Du Plessis, 6th duc de Richelieu & Fronsac to Alexandre Marie François de Paule de Dompierre d’Hornoy, 1 April 1769
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Horace Walpole, 4th earl of Orford, 1 April 1769
- Voltaire [François Marie Arouet] to Catherine II, czarina of Russia [the Great], 1 April 1769
- Voltaire [François Marie Arouet] to Catherine II, czarina of Russia [the Great], 1 April 1769 [translation from French into English]
- Voltaire [François Marie Arouet] to Jean François René Tabareau, 2 April 1769
- Doctor Richard Price to Benjamin Franklin, 3 April 1769
- Voltaire [François Marie Arouet] to Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy], 3 April 1769
- Voltaire [François Marie Arouet] to Marie Louise Denis [née Mignot], 3 April 1769
- Voltaire [François Marie Arouet] to Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy], 3 April 1769
- Voltaire [François Marie Arouet] to Guillaume Claude de Laleu, 3 April 1769
- Voltaire [François Marie Arouet] to Marie Louise Denis [née Mignot], 3 April 1769