- MS 1453/177;D Letter to Farrer and Company, 24 June 1913 [On division of funds raised by Herbert Ponting's expedition film] typescript (carbon)
- MS 1517/4/1;D Letter to Archibald Geikie, 6 December 1909 [Regarding bank account and signing of cheques] 2 leaves
- MS 1517/4/2;D Letter to Archibald Geikie, 21 December 1910 [Enclosing letter from Scott, sent from New Zealand, 19 December 1910, concerning expedition finances] 6 leaves
- MS 559/132;D Letter to Reginald John Smith, 11 November 1911 [Regarding interests of the British Antarctic Expedition, 1910-1913] 1 leaf, typescript
By Leonora Speyer:
- MS 1453/178;D Letter to Robert Falcon Scott, 30 September 1906 [Thanks for sending a sketch of 'our' mountain] 1 leaf, holograph