Letter listing for 1780–1789
- Comments on James Gregory’s “Essay on the difference between the relation of motive and action, and that of cause and effect, in physics: on physical and mathematical principles” by Thomas Reid, c. 1789
- Charles Theveneau de Morande, chevalier de Morande to Pierre Augustin Caron de Beaumarchais, July 1789
- Richard Brinsley Sheridan to Elizabeth Ann Sheridan [née Linley], before July 1789
- Jean Denis Charles Duval to René Louis de Girardin, marquis de Girardin, 1 July 1789
- Marie Thérèse Levasseur [née Renout] to René Louis de Girardin, marquis de Girardin, 1 July 1789
- Doctor Richard Price to Charles Joseph Mathon de la Cour, 1 July 1789
- Doctor Richard Price to Honoré Gabriel Riqueti, comte de Mirabeau, 2 July 1789
- James Boswell to William Johnston Temple, 3 July 1789
- Edmund Pendleton to James Madison [junior], 3 July 1789
- François Mesnard de Conichard to Jacques Henri Bernardin de Saint-Pierre, 4 July 1789
- George Wilson to Jeremy Bentham, 5 July 1789
- Pierre Boisseau to Jacques Henri Bernardin de Saint-Pierre, 6 July 1789
- Claude Joseph Vernet to Jacques Henri Bernardin de Saint-Pierre, 6 July 1789
- Lucette Chappell to Jacques Henri Bernardin de Saint-Pierre, 7 July 1789
- Betsy LeFanu [née Sheridan] to Alicia LeFanu [née Sheridan], 7 July 1789