Letter listing for 1750–1759
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], 15 June 1751
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, c. 15 June 1751
- Claude Adrien Helvétius to Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt], c. 18 June 1751
- Antoine Saladin to Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy], 18 June 1751
- “Mutual Love: a Song” by Robert Dodsley, c. 19 June 1751
- Claude Adrien Helvétius to Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt], 19 June 1751
- Voltaire [François Marie Arouet] to Antoine Achard, c. 20 June 1751
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, 21 June 1751
- Laurent Angliviel de La Beaumelle to Voltaire [François Marie Arouet], 22 June 1751
- Philip Dormer Stanhope, 4th earl of Chesterfield to Philip Stanhope, 24 June 1751
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, 24 June 1751
- Voltaire [François Marie Arouet] to Michel Lambert, 25 June 1751
- Jean Jacques Rousseau to Jean Le Rond d’Alembert, 26 June 1751
- Antoine Achard to Voltaire [François Marie Arouet], 27 June 1751
- Voltaire [François Marie Arouet] to conte Francesco Algarotti, c. 27 June 1751