Letter listing for 1740–1749
- Gabrielle Émilie de Châtelet-Lomont d’Haraucourt, marquise Du Châtelet-Lomont [née Le Tonnelier de Breteuil] to Jean François de Saint-Lambert, marquis de Saint-Lambert, 27 April 1749
- Arthur Murphy to Jane Murphy [née French], 29 April 1749
- John Barr to Robert Dodsley, 30 April 1749
- Nicola Tacoli to Lodovico Antonio Muratori, 30 April 1749
- Voltaire [François Marie Arouet] to Jean François Marmontel, 30 April 1749
- Marie Louise Denis [née Mignot] to Nicolas René Berryer de Ravenoville, c. 1 May 1749
- Lodovico Antonio Muratori to Nicola Tacoli, 1 May 1749
- Voltaire [François Marie Arouet] to Jean François Marmontel, 2 May 1749
- Gabrielle Émilie de Châtelet-Lomont d’Haraucourt, marquise Du Châtelet-Lomont [née Le Tonnelier de Breteuil] to Marie Françoise Catherine de Boufflers, marquise de Boufflers-Remiencourt [née de Beauvau-Craon], 3 May 1749
- Voltaire buys a government annuity, May 1749 by Louis Basile de Bernage, 5 May 1749
- Gabrielle Émilie de Châtelet-Lomont d’Haraucourt, marquise Du Châtelet-Lomont [née Le Tonnelier de Breteuil] to Jean François de Saint-Lambert, marquis de Saint-Lambert, c. 5 May 1749
- Philip Dormer Stanhope, 4th earl of Chesterfield to Solomon Dayrolles, 5 May 1749
- Thomas Gray to Doctor Thomas Wharton, 6 May 1749
- Voltaire buys a debt owing to Mme Godemel de Bourdeiller, May 1749 by Guillaume Claude de Laleu and M. — Giraut, 7 May 1749
- Voltaire [François Marie Arouet] to Johann Bernoulli, II, 9 May 1749