Letter listing for 1740–1749
- Frederick II, king of Prussia [the Great] to Gabrielle Émilie de Châtelet-Lomont d’Haraucourt, marquise Du Châtelet-Lomont [née Le Tonnelier de Breteuil], 18 March 1740
- Filippo Argelati to Lodovico Antonio Muratori, 18 March 1740
- Thomas Gray to Dorothy Gray [née Antrobus], 19 March 1740
- Alexander Pope to William Borlase, 20 March 1740
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], 20 March 1740
- Alexander Pope to William Oliver, 21 March 1740
- Voltaire [François Marie Arouet] to Charles Augustin Feriol, comte d’Argental, 22 March 1740
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 23 March 1740
- Frederick II, king of Prussia [the Great] and Dietrich von Keyserlingk, graf von Keyserlingk to Voltaire [François Marie Arouet], 23 March 1740
- Voltaire [François Marie Arouet] to Claude Adrien Helvétius, 24 March 1740
- Voltaire [François Marie Arouet] to Claude Adrien Helvétius, 24 March 1740
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 25 March 1740
- Voltaire [François Marie Arouet] to père Bonaventure Moussinot, abbé Moussinot, 25 March 1740
- Voltaire [François Marie Arouet] to père Bonaventure Moussinot, abbé Moussinot, 26 March 1740
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 27 March 1740