Letter listing for 1750–1759
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, c. 15 March 1751
- Voltaire [François Marie Arouet] to Claude Étienne Darget, c. 15 March 1751
- Paolo Domenico de Carolis, chevalier de Carolis to Françoise Louise Eléonore de La Tour, baronne de Warens, 17 March 1751
- A Berlin certificat de vie, 1751 by Richard François Talbot, comte Tyrconnell, 17 March 1751
- Voltaire [François Marie Arouet] to Friedrich Wilhelm von Marschall, baron von Marschall, 18 March 1751
- Sophia Friderika Wilhelmina von Preussen, margravine of Bayreuth to Voltaire [François Marie Arouet], c. 20 March 1751
- Voltaire [François Marie Arouet] to Marie Louise Denis [née Mignot], 20 March 1751
- Anne Catherine Helvétius [née de Ligniville d'Autricourt] to François Antoine Devaux, 21 March 1751
- David Hume to Sir Gilbert Elliot of Minto, 3rd baronet, 21 March 1751
- Edward Young to Samuel Richardson, 21 March 1751
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, 24 March 1751
- David Hume to Sir Gilbert Elliot of Minto, 3rd baronet, 25 March / April 1751
- Claude Étienne Darget to Friedrich Wilhelm von Marschall, baron von Marschall, 29 March 1751
- Philip Dormer Stanhope, 4th earl of Chesterfield to Philip Stanhope, 29 March 1751
- David Hume to Jean Dysart of Eccles [née Hume], 30 March 1751