Letter listing for 1800–1809
- Hester Lynch Piozzi [formerly Mrs Thrale; née Salusbury] to Sir John Salusbury Piozzi Salusbury [née Piozzi], 25 April 1808
- Richard Brinsley Sheridan to Aaron Graham, John Hosier and Randle Jackson, 25 April 1808
- père André Morellet, abbé Morellet to Jean Jacques Régis de Cambacérès, duc de Parme, 30 April 1808
- Richard Brinsley Sheridan to Richard Wilson, 2 May 1808
- Richard Brinsley Sheridan to Thomas Metcalfe, 2 May 1808
- Richard Brinsley Sheridan to Thomas Metcalfe, 5 May 1808
- Charles Gaulis Clairmont to William Godwin, 6 May 1808
- Jacques Henri Bernardin de Saint-Pierre to Louise Marie Victoire de Chastenay-Lanty, 7 May 1808 [now missing]
- Hester Lynch Piozzi [formerly Mrs Thrale; née Salusbury] to Reverend Thomas Sedgwick Whalley, 11 May 1808
- Jeremy Bentham to Sir Samuel Romilly, 14 May 1808
- Draft of “Propositions designed to serve as a basis for an offer proposed to be made in the form of a Petition to the House of Commons” by Jeremy Bentham for Sir Samuel Romilly, 14 May 1808
- Draft of “Propositions designed to serve as a basis for an offer proposed to be made in the form of a Petition to the House of Commons” by Jeremy Bentham for Pierre Étienne Louis Dumont, 14 May 1808
- Adam Ferguson to William Clark, 19 May 1808
- Jeremy Bentham to Sir Samuel Romilly, 20 May 1808
- Sir Samuel Romilly to Jeremy Bentham, 20 May 1808