Spalding's papers consist of:
- Diaries of Emma Bigwood, 1862-1935
- Papers of N.H. Baynes, including holiday diaries, 1889-1913, stories compiled by Baynes, and Baynes family papers
- Papers of P.A. Spalding, including a group of holiday diaries, 1923-42, the main journal, 1930-86, and diaries, 1935, 1940-83, containing daily notes on the weather and brief memoranda of Spalding's activities each day. The papers also include some unpublished literary work, and several boxes of correspondence