Letter listing for 1750–1759
- Charles Jean François Hénault to Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy], 5 April 1753
- Voltaire [François Marie Arouet] to Johann Christof Gottsched, 6 April 1753
- Samuel Richardson to Hester Chapone [née Mulso], 9 April 1753
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, 10 April 1753
- Frederick II, king of Prussia [the Great] to Franz von Freytag, graf von Freytag, 11 April 1753
- Frederick II, king of Prussia [the Great] to Sophia Friderika Wilhelmina von Preussen, margravine of Bayreuth, 12 April 1753
- Jean Martin de Prades to Pierre Louis Moreau de Maupertuis, 14 April 1753
- M. — La Fontaine to Voltaire [François Marie Arouet], 14 April 1753
- Jean Le Rond d’Alembert to Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy], 14 April 1753
- Frederick II, king of Prussia [the Great] to George Keith, 10th Earl Marischal, c. 15 April 1753
- Louise Adelgunde Victorie Gottsched [née Kulmus] to Dorothee Henriette von Runckel, 18 April 1753
- Voltaire [François Marie Arouet] to Charles Nicolas de La Touche, chevalier de La Touche, 18 April 1753
- Voltaire [François Marie Arouet] to Christoph Otto von Schönaich, Freiherr von Schönaich, 18 April 1753
- Frederick II, king of Prussia [the Great] to Voltaire [François Marie Arouet], 19 April 1753
- Voltaire [François Marie Arouet] to Johann Christof Gottsched, 19 April 1753
