Letter listing for 1750–1759
- Francis Fauquier to Lords Commissioners of Trade and Foreign Plantations [Board of Trade], 14 April 1759
- Address to the Assembly by Francis Fauquier for Virginia General Assembly, 14 April 1759
- Order in council by His/Her Majesty’s most honourable Privy Council for Virginia General Assembly, 14 April 1759
- Edward Young to Margaret Cavendish Bentinck, duchess of Portland [née Harley], 14 April 1759
- Claude Adrien Helvétius to Pierre François Paul Berny d’Ouville, 15 April 1759
- Voltaire [François Marie Arouet] to Marie Élisabeth de Dompierre de Fontaine, marquise de Florian [née Mignot], 15 April 1759
- Francis Fauquier to William Pitt, 1st earl of Chatham [the elder], 16 April 1759
- Albrecht von Haller, baron von Haller to Charles Bonnet, 16 April 1759
- Philip Dormer Stanhope, 4th earl of Chesterfield to Philip Stanhope, 16 April 1759
- Voltaire [François Marie Arouet] to Pierre Jean Grosley, 16 April 1759
- Adam Ferguson to William Cullen, 17 April 1759
- Voltaire [François Marie Arouet] to Albrecht von Haller, baron von Haller, 17 April 1759
- Voltaire [François Marie Arouet] to Louis Bollioud-Mermet, 17 April 1759
- Voltaire [François Marie Arouet] to Albrecht von Haller, baron von Haller, 17 April 1759
- Frederick II, king of Prussia [the Great] to Voltaire [François Marie Arouet], 18 April 1759