Letter listing for 1750–1759
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, c. 13 May 1751
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, c. 14 May 1751
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, c. 15 May 1751
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, c. 15 May 1751
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, c. 15 May 1751
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, c. 15 May 1751
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, c. 15 May 1751
- Marie Louise Denis [née Mignot] to Nicolas René Berryer de Ravenoville, 20 May 1751
- Voltaire [François Marie Arouet] to Luise Dorothea, Herzogin von Sachsen-Gotha-Altenburg [née von Sachsen-Meiningen], 23 May 1751
- Jean Poussot to Nicolas René Berryer de Ravenoville, 24 May 1751
- Charlotte Sophia van Aldenburg, countess of Bentinck to Voltaire [François Marie Arouet], 25 May 1751
- Johanna Elisabeth von Ascania, princess of Anhalt-Zerbst [née von Schleswig-Holstein-Gottorp] to Voltaire [François Marie Arouet], 25 May 1751
- Voltaire [François Marie Arouet] to Charlotte Sophia van Aldenburg, countess of Bentinck, 25–26 May 1751
- Philip Dormer Stanhope, 4th earl of Chesterfield to Philip Stanhope, 27 May 1751
- Jean Jacques Rousseau to Isaac Ami Marcet de Mézières, 28 May 1751