Letter listing for 1750–1759
- Voltaire [François Marie Arouet] to Claire Josèphe Hippolyte Léris de Latude [née Léris], c. 15 January 1750
- Voltaire [François Marie Arouet] to Charles Augustin Feriol, comte d’Argental, 16 January 1750
- Lodovico Antonio Muratori to Cardinal Fortunato Tamburini, 18 January 1750
- Edward Young to Samuel Richardson, 18 January 1750
- Philip Dormer Stanhope, 4th earl of Chesterfield to Philip Stanhope, 19 January 1750
- Voltaire [François Marie Arouet] to Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt], 19 / 26 January 1750
- Frederick II, king of Prussia [the Great] to Voltaire [François Marie Arouet], 20 January 1750
- Voltaire [François Marie Arouet] to Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt], 20 / 27 January 1750
- Voltaire [François Marie Arouet] to Claire Josèphe Hippolyte Léris de Latude [née Léris], c. 20 January 1750
- Voltaire [François Marie Arouet] to Anne Louise Bénédicte de Bourbon, duchesse Du Maine [née de Bourbon-Condé], c. 21 January 1750
- père Pierre Robert Le Cornier de Cideville, abbé Cideville to Voltaire [François Marie Arouet], 22 January 1750
- Voltaire [François Marie Arouet] to François Thomas Marie de Baculard d’Arnaud, c. 25 January 1750
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, 28 January 1750
- Cardinal Fortunato Tamburini to Lodovico Antonio Muratori, 28 January 1750
- Jean Jacques Rousseau to Voltaire [François Marie Arouet], 30 January 1750