- MS559/166/1-2;D Letters (2) to Apsley Cherry-Garrard, 14 and 27 August 1918 [Regarding photograph of the cross and cairn erected where it is thought Oates died] 2 leaves, holograph
- MS 100/88;D Letter to Hugh Robert Mill, 15 January 1930 [Regarding Stephen Gwynn biography on Scott] 2 leaves, holograph
- MS 356/79/1-8;D Letters (8) to Robert Neal Rudmose Brown, 12 March 1924 to 26 March 1928 [Regarding her son and including text of a poem on him] 12 leaves, holograph
Correspondence to Caroline Oates:
- MS 1016/391-419;D Letters (29) received by Mrs Oates on the death of her son, 1913-1914 [Miscellaneous correspondents many from Inniskilling Dragoons]