Letter listing for 1850–1859
- Miss Sophie Beckedorff [née Beckedorff] to Sir John Frederick William Herschel, 1st baronet of Slough, 4 February 1850
- Anna Laura Georgina Galloni d’Istria [laterly Tardy; née Tighe] to Mary Wollstonecraft Shelley [née Godwin], 22 February 1850
- Clara Mary Jane Clairmont [née Clairmont] to Wilhelm Charles Gaulis Clairmont, 10 March 1850
- Anna Laura Georgina Galloni d’Istria [laterly Tardy; née Tighe] to Mary Wollstonecraft Shelley [née Godwin], 13 March 1850
- Clara Mary Jane Clairmont [née Clairmont] to Antonia Clairmont [née Ghilain von Hembize], 1 August 1850
- Clara Mary Jane Clairmont [née Clairmont] to Wilhelm Charles Gaulis Clairmont, 21 January 1851
- Clara Mary Jane Clairmont [née Clairmont] to Sir Percy Florence Shelley, 3rd baronet, c. February 1851
- Clara Mary Jane Clairmont [née Clairmont] to Bartolomeo Cini, 12 July 1851
- Clara Mary Jane Clairmont [née Clairmont] to Bartolomeo Cini, 12 July 1851 [translation from Italian into English]
- Déconvenue d'un poète by Louis Philippe Joseph Girod de Vienney, baron de Trémont, before 1852
- Clara Mary Jane Clairmont [née Clairmont] to Pauline Clairmont [née Clairmont], 16 March 1852
- Clara Mary Jane Clairmont [née Clairmont] to Leigh Hunt, 30 August 1852
- A pamphlet about BAAS conferences by Charles Frost, 16 November 1852
- Reverend William Venables Vernon Harcourt to Sir Edward Sabine, 1853
- Clara Mary Jane Clairmont [née Clairmont] to Antonia Clairmont [née Ghilain von Hembize], 6 September 1853