The papers contain published and unpublished writings by AMT, off-prints of articles by AMT and by other authors with annotations by AMT, his Fellowship Dissertation, and correspondence.
Most of the papers in Sections B, C, and D refer to AMT’s work from c. 1940 until his death in 1954. There are a few references in the correspondence to his work in the 1930s, but no remaining drafts or working papers. During the Second World War, AMT worked at the Code and Cypher School at Bletchley Park, from where several of the letters in Section D were written. AMT was awarded the OBE for his work on ‘Enigma’ and other codes at Bletchley. The material on morphogenesis, C/24-27 represents a substantial addition to the documentation of AMT’s work and thinking on this topic, left incomplete at his death. Section D contains photocopied letters and calculations exchanged by AMT and I. J. Good (D/6-10), and some original letters by AMT (D/11-14), most of them addressed to P. Hall. Section E contains video recordings, and typescript copies, of lectures given at the Turing Celebration Day held at the Lady Mitchell Hall, and afterwards in King’s College, Cambridge, on 1 Oct. 1997.