- Original death certificate, 1901.
- Obituary cuttings, 1901.
- Photograph of D'Oyly Carte's grave at Fairlight, ca.1901.
- Draft for an entry in Grove's Dictionary, ca.1910s.
- Typed entry from the Dictionary of National Biography, 1911.
- Page of manuscript notes on D'Oyly Carte's upbringing and character, author unknown, ca.1900s-1930s.
- Original letter from Frances Brookfield to Mrs Boneta regarding writing a life of D'Oyly Carte, 22 Mar 1906.
- Page of notes on D'Oyly Carte's character and career, with a note to Helen Carte from the author, 1906.
- Typed notes titled 'made by a cousin for a life of Richard D'Oyly Carte', ca.1970s.