Letter listing for 1740–1749
- John Boyle, 5th earl of Cork and Orrery and Margaret Boyle, countess of Cork and Orrery [née Hamilton] to Alexander Pope, 5 March 1740
- Alexander Pope to William Oliver, 7 March 1740
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 9 March 1740
- Gabrielle Émilie de Châtelet-Lomont d’Haraucourt, marquise Du Châtelet-Lomont [née Le Tonnelier de Breteuil] to conte Francesco Algarotti, 10 March 1740
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], 10 March 1740
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 11 March 1740
- Alexander Pope to Hugh Hume Campbell, 3rd earl of Marchmont, 11 March 1740
- Voltaire [François Marie Arouet] to Jeanne Françoise Quinault, 11 March 1740
- Thomas Gray to Doctor Thomas Wharton, 12 March 1740
- Voltaire [François Marie Arouet] to Charles Augustin Feriol, comte d’Argental, 12 March 1740
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 13 March 1740
- David Hume to Francis Hutcheson, 15 March 1740
- Voltaire [François Marie Arouet] to Marie Louise Denis [née Mignot], c. 15 March 1740
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 16 March 1740
- Frederick II, king of Prussia [the Great] to Voltaire [François Marie Arouet], 18 March 1740