Letter listing for 1770–1779
- Edmund Burke to Charles Watson-Wentworth, 2nd marquess of Rockingham, 5 December 1774
- Voltaire [François Marie Arouet] to Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy], 5 December 1774
- Voltaire [François Marie Arouet] to Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy], 5 December 1774
- Louis XVI, king of France to Charles Gravier, comte de Vergennes, 6 December 1774
- Charles Gravier, comte de Vergennes to Louis XVI, king of France, 6 December 1774
- Jeremy Bentham to Sir Samuel Bentham, 6 December 1774
- Doctor Richard Price to Josiah Quincy [junior], 6 December 1774
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Voltaire [François Marie Arouet], 7 December 1774
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Voltaire [François Marie Arouet], 7 December 1774
- Voltaire [François Marie Arouet] to Marie Jean Antoine Nicolas de Caritat, marquis de Condorcet, 7 December 1774
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], 7 December 1774
- Voltaire [François Marie Arouet] to Bernhard Wilhelm Goltz, Baron Goltz, 7 December 1774
- Voltaire [François Marie Arouet] to Anne Robert Jacques Turgot, baron de l’Aulne, 7 December 1774
- Charles Gravier, comte de Vergennes to Louis XVI, king of France, 8 December 1774
- Paul Claude Moultou to Jakob Heinrich Meister, 8 December 1774
