Letter listing for 1800–1809
- Jacques Henri Bernardin de Saint-Pierre to Marguerite Charlotte Désirée de Saint-Pierre [née de Pelleporc], 30 April 1806 [now missing]
- père André Morellet, abbé Morellet to Paul Narcisse Eugène d’Andrée, Baron Des Pilles, May 1806
- Jacques Henri Bernardin de Saint-Pierre to Marguerite Charlotte Désirée de Saint-Pierre [née de Pelleporc], 6 May 1806
- Jeremy Bentham to Sir Samuel Bentham, 13 May 1806
- Jeremy Bentham to Charles James Fox, 13 May 1806
- Richard Brinsley Sheridan to [unknown], 13 May 1806
- Richard Brinsley Sheridan to Thomas Sheridan, 14 May 1806
- Jacques Henri Bernardin de Saint-Pierre to Jean Pierre Adrien Auguste Le Pesant de Boisguilbert, 16 May 1806
- Hester Lynch Piozzi [formerly Mrs Thrale; née Salusbury] to Hester Maria Elphinstone, Viscountess Keith [née Thrale], 26 May 1806
- Jacques Henri Bernardin de Saint-Pierre to Marguerite Charlotte Désirée de Saint-Pierre [née de Pelleporc], 28 May 1806
- Jacques Henri Bernardin de Saint-Pierre to Marguerite Charlotte Désirée de Saint-Pierre [née de Pelleporc], 31 May 1806
- Jacques Henri Bernardin de Saint-Pierre to Marguerite Charlotte Désirée de Saint-Pierre [née de Pelleporc], 2 June 1806
- Jacques Henri Bernardin de Saint-Pierre to Firmin Didot, 2 June 1806
- Hester Lynch Piozzi [formerly Mrs Thrale; née Salusbury] to Reverend Leonard Chappelow, 4 June 1806
- Adam Ferguson to Sir John Macpherson, Baronet Macpherson of Calcutta and Lauriston, 7 June 1806