Letter listing for 1780–1789
- François Mesnard de Conichard and Marie Thérèse Mesnard de Conichard [née Brochant] to Jacques Henri Bernardin de Saint-Pierre, 26 December 1788
- Reverend Doctor Nevil Maskelyne to Caroline Lucretia Herschel, 27 December 1788
- Richard Brinsley Sheridan to John Willett Payne, 28 December 1788
- Betsy LeFanu [née Sheridan] to Alicia LeFanu [née Sheridan], 29 December 1788
- Corilla Olimpica [Maria Maddelena Morelli Fernandez] to Giovanni Cristofano Amaduzzi, 29 December 1788
- Jacques Henri Bernardin de Saint-Pierre to Bertrand Dufresne Saint Léon, 29 December 1788
- Charles Rowe to Joseph Foster Barham I [née Foster], 31 December 1788
- Richard Brinsley Sheridan to Charles James Fox, 1788 / 1789
- Richard Brinsley Sheridan to Henrietta Frances Ponsonby, countess of Bessborough [née Spencer], 1788 / 1789
- Jean Baptiste Pujoulx to Jacques Henri Bernardin de Saint-Pierre, c. 1789
- Marie Thérèse Mesnard de Conichard [née Brochant] to Jacques Henri Bernardin de Saint-Pierre, 1789–1792
- Lucette Chappell to Jacques Henri Bernardin de Saint-Pierre, 1789–1791
- Lucette Chappell to Jacques Henri Bernardin de Saint-Pierre, 1789–1791
- Mme — Grivet to Jacques Henri Bernardin de Saint-Pierre, 1789–1792
- Jean François de La Harpe to Count Andrei Petrovich Shuvalov, 1789
