Letter listing for 1830–1839
- James Finlay Weir Johnston to Reverend William Venables Vernon Harcourt, 4 July 1833
- Reverend William Whewell to Reverend William Venables Vernon Harcourt, 27 July 1833
- Reverend William Venables Vernon Harcourt to Reverend John Stevens Henslow, 29 July 1833
- Francis Baily to Reverend William Venables Vernon Harcourt, 31 July 1833
- Caroline Lucretia Herschel to Sir John Frederick William Herschel, 1st baronet of Slough, 1 August 1833
- Thomas Drummond to Sir John Frederick William Herschel, 1st baronet of Slough, 1 August 1833
- John Charles Spencer, 3rd Earl Spencer to Sir John Frederick William Herschel, 1st baronet of Slough, 1 August 1833
- Sir John Frederick William Herschel, 1st baronet of Slough to Reverend Adam Sedgwick, 3 August 1833
- Reverend John Stevens Henslow to Reverend William Venables Vernon Harcourt, 8 August 1833
- Reverend William Venables Vernon Harcourt to Reverend James Yates, 13 August 1833
- Reverend William Venables Vernon Harcourt to Sir John Frederick William Herschel, 1st baronet of Slough, 23 August 1833
- Caroline Lucretia Herschel to Lady Margaret Brodie Herschel [née Stewart], 6 September 1833
- Clara Mary Jane Clairmont to Mary Wollstonecraft Shelley [née Godwin], 15 September 1833
- William Charles Henry to Reverend William Venables Vernon Harcourt, 23 October 1833
- Reverend William Buckland to Reverend William Venables Vernon Harcourt, 20 November 1833