1. Letter written by Edith Cavell, June, 1907. Copy obtained at the Royal London Hospital Archives, Whitechapel, London, UK.
2. Boston N. The Dutiful Edith Cavell. Unknown date. Norwich Cathedral, Norwich, England, p. 3. (Copy in the Royal London Hospital Archives, Whitechapel, London, UK.)
3. Ryder R, Hamilton H. Edith Cavell. London: Ebenezer Baylis and Son Limited, Trinity Press, 1975. Appendix E.