Letter listing for 1750–1759
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, 13 March 1750
- Voltaire [François Marie Arouet] to René Louis de Voyer de Paulmy d’Argenson, 2nd marquis d’Argenson, 13 March 1750
- Voltaire [François Marie Arouet] to Nicolas René Berryer de Ravenoville, 15 March 1750
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], c. 15 March 1750
- Voltaire [François Marie Arouet] to Anne Louise Bénédicte de Bourbon, duchesse Du Maine [née de Bourbon-Condé], c. 16 March 1750
- Voltaire [François Marie Arouet] to Anne Louise Bénédicte de Bourbon, duchesse Du Maine [née de Bourbon-Condé], c. 16 March 1750
- Voltaire [François Marie Arouet] to chevalier de Gaya, c. 16 March 1750
- Payment for the copyright to The Roman father (1750) by Robert Dodsley and William Whitehead, 17 March 1750
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], 17 March 1750
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, 19 March 1750
- Voltaire [François Marie Arouet] to Nicolas René Berryer de Ravenoville, 19 March 1750
- Voltaire [François Marie Arouet] to Jean Jacques Dortous de Mairan, 22 March 1750
- Receipt for the copyright to Cibber's Apology (1740) by Robert Dodsley and Colley Cibber, 24 March 1750
- Voltaire [François Marie Arouet] to Marie Louise Denis [née Mignot], 27 March 1750
- Philip Dormer Stanhope, 4th earl of Chesterfield to Philip Stanhope, 30 March 1750