Letter listing for 1730–1739
- Voltaire [François Marie Arouet] to Antioch Cantemir, prince of Russia, 19 April 1739
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 20 April 1739
- Gabrielle Émilie de Châtelet-Lomont d’Haraucourt, marquise Du Châtelet-Lomont [née Le Tonnelier de Breteuil] to Charles Augustin Feriol, comte d’Argental, 20 April 1739
- Pierre Louis Moreau de Maupertuis to James Jurin, 20 April 1739
- Voltaire [François Marie Arouet] to père Bonaventure Moussinot, abbé Moussinot, 20 April 1739
- Voltaire [François Marie Arouet] to Nicolas Claude Thieriot, 20 April 1739
- Voltaire [François Marie Arouet] to Charles Augustin Feriol, comte d’Argental, c. 20 April 1739
- Thomas Gray to Thomas Ashton, 21 April 1739
- William Richardson to Jonathan Swift, 21 April 1739
- Alexander Pope to Reverend Doctor William Warburton, bishop of Gloucester, 22 April 1739
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 23 April 1739
- Alexander Pope to Richard Boyle, 3rd earl of Burlington, 23 April 1739
- Voltaire [François Marie Arouet] to Nicolas Claude Thieriot, 23 April 1739
- Filippo Argelati to Lodovico Antonio Muratori, 25 April 1739
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], 25 April 1739