Manuscripts of Berta Ruck, [c. 1890]-[1974x1978], including notebooks, 1906-1946; manuscripts and typescripts of literary and autobiographical works, 1955-[1974x1978]; letters, [c. 1890]-1971; poetry, [1920s]-[1930s]; and sketches, [1900x1920].
The notebooks typically contain notes and ideas for fiction, drawings and sketches, pasted in letters and ephemera, and journal entries. These detail her home life and travels and give news of her sons Arthur and Bill Oliver, husband Oliver Onions and other family and friends.

Thirteen notebooks, 1951-1973, containing journal entries; letters and postcards, many from relatives, literary agents and the media (relating in particular to her broadcasts on Welsh regional BBC programmes); photographs; ideas for fiction; and press cuttings of book reviews.