Letter listing for 1750–1759
- Matthew Maty to Voltaire [François Marie Arouet], 22 June 1750
- Thomas Gray to Horace Walpole, 4th earl of Orford, 23 June 1750
- Voltaire gives a power of attorney for the administration of his bonds, 1750 by Guillaume Claude de Laleu and M. — Giraut, 24 June 1750
- Voltaire [François Marie Arouet] to Anne Louise Bénédicte de Bourbon, duchesse Du Maine [née de Bourbon-Condé], 24 June 1750
- Ludwig Eugen von Württemberg, Herzog von Württemberg to Voltaire [François Marie Arouet], c. 25 June 1750
- Frederick II, king of Prussia [the Great] to Voltaire [François Marie Arouet], 26 June 1750
- Marie Thérèse Geoffrin [née Rodet] to Gabriel Cramer, 26 June 1750
- Voltaire [François Marie Arouet] to Charles Augustin Feriol, comte d’Argental and Jeanne Grâce Bosc Du Bouchet, comtesse d’Argental, 26 June 1750
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], 26 June 1750
- Pierre Claude Nivelle de La Chaussée to père Jean Bernard Le Blanc, abbé Le Blanc, 29 June 1750
- Philip Dormer Stanhope, 4th earl of Chesterfield to Solomon Dayrolles, 30 June 1750
- Voltaire [François Marie Arouet] to Claude Étienne Darget, 2 July 1750
- Samuel Richardson to Susanna Duncombe [née Highmore], 3 July 1750
- Voltaire [François Marie Arouet] to Marie Louise Denis [née Mignot], 9 July 1750
- L'Adjudication du prix by Académie de Dijon, 10 July 1750