trip to St Moritz 14
1922
studies at Hazelhurst school in Kent 14–19
reads Natural Wonders Every Child Should Know, eyes opened to science 16–18
1923
invents ‘cinema’ machine 18–19
invents modified fountain pen 19
moves to Watton-at-Stone, Hertfordshire 20
trip to Rouen, France 20
father resigns from Indian Civil Service and lives as tax exile in Dinard, France 20
takes interest in learning French, sends postcard about ‘la revolution’ to mother 22
1924
trips to Oxford and Wales, takes interest in maths, maps and chess 23
develops passion for chemistry 23–6
spends Christmas in Dinard 25
1925
studies for Common Entrance examination 25
sits entrance exam for Marlborough 26
1926
accepted to study at Sherborne School, Dorset 27
cycles from Southampton to Sherborne 27–8
begins studies at Sherborne 28–32
1927
has trouble adapting to school life 32–4
finds infinite series for the ‘inverse tangent function’ 34
isolated in sanatorium with mumps 35
confirmation 35
sexual awakening 38
first notices Christopher Morcom 45–6
A. H. T. Ross frustrated by his attitude to New Testament 39
has trouble adapting to school life 40
boils ‘witches’ brew’ on window sill 41
1928
Matthew Blamey sent to share study and help him conform 40
studies for School Certificate 42
held back in the fifth form, takes sixth-form maths classes with Eperson 43
studies Einstein’s theory of relativity 43–5
forms friendship with Christopher Morcom 45–7
1929
enters sixth form, continues friendship with Christopher 47–50, 53–4
studies for Higher School Certificate 49–50
investigates iodate experiment with Christopher 51–2
develops interest in astronomy, studies quantum theory 52–3, 85
receives subsidy from Sherborne 54
attempts to win Trinity College scholarship with Christopher 54–6
rejected by Trinity for scholarship 57
1930
stargazing, spots comet in Delphinus 57–9
death of Christopher 59, 60–3
visits Cornwall with Geoffrey O’Hanlon 63
travels to Gibraltar with the Morcoms 63–4
visits Clock House, presents Mrs Morcom with parcel of Christopher’s letters 64–5
continues with iodate experiment for Christopher Morcom Prize, perspective drawing 66
studies for Higher School Certificate 67
wins Christopher Morcom Prize, studies German 67–8
conducts Foucault pendulum experiment at Westcott House 68
writes recollections of Christopher for Mrs Morcom 68–9
visits Clock House, holidays in Donegal 69
made a School Prefect 70–2
friendship with Victor Beuttell, enjoys going running 72–4
elected to scholarship at King’s College, Cambridge 74–5
1931
studies for Higher Certificate, wins Christopher Morcom Prize 75
goes on walking holiday with Peter Hogg and George Maclure 75
takes on David Harris as a ‘fag’, wins art competition and King Edward VI gold medal 76
visits Sark with O’Hanlon, Peter Hogg and Arthur Harris 76–7
begins studies at King’s College 77–9
forms friendship with David Champernowne 79–80
1932
joins college Boat Club, falls in love with Kenneth Harrison 80–1
Mrs Morcom returns Christopher’s letters, visits him in Cambridge 81
visits Clock House, views Christopher’s memorial panel at Catshill parish church 81–2
placed in second class in Part I of Tripos, Mrs Morcom sends ‘Research’ fountain pen 86–7
holidays in Germany, Ireland and Sark, fruit-flies escape and infest house at Guildford 87
stays with Beuttells in London 88
visits Sherbourne for house supper with Victor 89
wanders into David Champernowne’s room drunk, told to ‘get a grip on himself’ 90
1933
third anniversary of Christopher’s death 90
joins ‘Anti-War Council’ 92–3, 642
forms relationship with James Atkins, walking holiday in Lake District 96–7
visits Clock House to remember Christopher 97–8
continues relationship with James, incident at Founder’s Feast 98
makes friends with Fred Clayton 98–9
studies pure mathematics 101–3
reads paper to Moral Science Club 110
1934
works on Central Limit Theorem 113
holiday in Austrian Alps, passes Part II of Tripos with distinction 113–14
cycling trip to Germany 114–15
works on dissertation, takes Part III course on Foundations of Mathematics 116
asks mother for teddy bear 114
1935
elected fellow of King’s College, writes paper on group theory 121–2
investigates Entscheidungsproblem, invents Turing machine 123–40
1936
completes paper on Entscheidungsproblem 141–5
applies for Procter Fellowship at Princeton 144
wins Smith’s Prize 145
Victor Beuttell comes to stay at Cambridge 145–6
visits Clock House 146–7
takes Cunard liner to America 147–8
studies at Princeton University 148–52
abdication of Edward VIII 154–6
gives lecture at Mathematical Club, Computable Numbers published 157–9
visits Francis Underhill in New York, skiing trip in New Hampshire 163
1937
social life at Princeton 163
writes papers on lambda-calculus and group theory 164–5
applies for lectureship at Cambridge 165–6
offered second year of Procter Fellowship at Princeton 166–7
visits Jack Crawford, returns to England 167–8
works on theory of numbers 169–72
boating holiday, visits Beuttells 173
returns to Princeton with Will Jones 173–4
designs electric multiplier for cryptanalysis 175–8
works on Riemann zeta-function 178–80
stays with Venable Martin in South Carolina 180
1938
works on Gödel’s theorem, ordinal logics 180–3
offered job at Institute for Advanced Study 183
leaves Princeton, heads back to Cambridge 183–4
recruited by Government Code and Cypher School 188–9
returns to King’s College, offers faculty course on Foundations of Mathematics 189–90
1939
sponsors Jewish refugee Robert ‘Bob’ Augenfeld 191
works with Government Code and Cypher School 192–3
joins Wittgenstein’s class on Foundations of Mathematics 193–6
designs Turing zeta-function machine 196–9
boating holiday, outbreak of World War II 200–1
cryptanalytic work at Bletchley Park, designs Turing Bombe 202–37
1940
invasion of Norway, German patrol boat VP2623 captured 238–9
buries silver ingots 242–3
holiday in Wales with Bob, makes sexual advance 243–4
investigates inverse probability 246–8
1941
life at Bletchley Park 256–90
meets Winston Churchill 259
engagement to Joan Clarke 259–61, 264–5
studies chess, theory o
f games 266–70
works on theory of types, writes ‘The Reform of Mathematical Notation’ 270–2
holiday in Wales with Joan, breaks off engagement 272–3
1942
works on ‘Turingismus’ 291
enrolls in infantry section of Home Guard 292–3
awarded £200 by Foreign Office 295
sent to Washington D. C. with British Joint Staff Mission xxii, 298, 304, 305–8
1943
visits the Crawfords, death of Jack 308
works on speech encipherment at Bell Laboratories 309–18
takes Empress of Scotland back to Britain 318–21
returns to Bletchley Park 329–37
Christmas, works on speech encipherment 337–9
transfers to Hanslope Park 339–41
1944
Robin Gandy and Donald Bayley arrive at Hanslope Park 342–3
works on ‘Delilah’ speech encipherment project xxiii, 343–50
moves into Officers’ Mess at Hanslope Park 350–3
works on ‘Delilah’ speech encipherment project xxiii, 353–8
1945
works on ‘Delilah’ speech encipherment project 358–64
VE Day 363
works on Universal Turing Machine 364–83
recruited by National Physical Laboratory 383–6
visits Germany to write report on communications 391–3
works at National Physical Laboratory on Automatic Computing Engine 394–424
joins Walton Athletics Club 434
cycles into London for lecture, bicycle stolen 434
1946
awarded Order of the British Empire 424–5
works on Automatic Computing Engine 425–33
meets with James Atkins 464
hunts for buried silver ingots 433
trains for marathon running 434–5
gives lectures on Automatic Computing Engine 443–4
Boxing Day athletics meeting 444–5
1947
travels to America for Symposium on Large Scale Digital Calculating Machinery 445
visits Princeton 446
gives talk at London Mathematical Society 448–9
runs in Southern Counties ten-mile championship 464
gets in contact with Fred Clayton 464
Harry Huskey builds Version H of Automatic Computing Engine 459–60
withdraws from ACE development, takes ‘sabbatical year’ 462
visits Bosham 464
death of father 464–5
holiday with Fred Clayton 465–6
resumes fellowship at King’s 466–8
writes numerical analysis paper 468
1948
gives lecture on ‘Problems of Robots’ at Moral Science Club 469
relationship with Neville Johnson 470–1
writes report on Intelligent Machinery for NPL 474–86
attends Olympic Games 486–7
holiday with Neville in Switzerland, week in Lake District with Peter Matthews 487
trip to Wales with Robin Gandy 489–90
attends Bob’s wedding, heads to Manchester 490
works as Deputy Director of Royal Society Computing Laboratory, Manchester University 491–6
stays on at Manchester as freelance professor 496–9
1949
stays in Criccieth with the Newmans 499
holiday in France with Neville 499
devises ‘Presents’ game with robin and Nick 500
works on Ferranti machine 500–7
interviewed by The Times 511
gives talk at EDSAC inaugural conference 512
joins Ratio Club, works on group theory 518–20
1950
writes Computing Machinery and Intelligence, imitation game 522–37
moves into ‘Hollymeade’ house in Cheshire 537–9
investigates morphogenesis 543–8
meets with J. Z. Young to discuss brain-cells 548–50
1951
becomes Fellow of the Royal Society 552–4
investigates word problem for groups, takes interest in topology 555–6
gives ‘Can Digital Computers Think?’ talk on BBC Third Programme 556
investigates morphogenesis, runs Hydra simulation, 560
trip to London, visits Festival of Britain and Science Museum 561–2
completes paper on morphogenesis 563
writes short story 564–5, 654
relationship with Arnold Murray 565–7
1952
appears on BBC Third Programme debate 567–9
continues relationship with Arnold Murray 569–71
death of Sybil 572
house broken into, suspects Arnold Murray 572
Arnold calls round to protest innocence 573
police investigate burglary, admits to having affair with Arnold 574–6
charged with ‘gross indecency’ 576
prosecuted for ‘gross indecency’ xxiii–xxiv, 582–6, 588, 593–5
tells mother about his sexuality 584
continues with work on morphogenesis 587
placed on probation, starts organo-therapic treatment xviii, 595–7
friendship with Lyn Newman, reads Tolstoy 598–9
attends Ratio Club meeting, holiday in Norway xviii, 599–600
contributes to Faster than Thought book 602
visits Don Bayley in Woburn Sands 603–4
trip to Wilmslow with Robin and Don 604
psychoanalysis with Franz Greenbaum xxvi, xxx, 605–7
1953
‘crisis’ over Robin’s PhD thesis 607–9
conducts electrolytic experiments in ‘nightmare room’ 609
‘Kjell crisis’ xxii, 608–9, 634
gives lectures at Sherborne 609–10
appointed to Readership in the Theory of Computing 612
visits to the Greenbaums’
house 611–12
holiday to Corfu 612–13
investigates Radiolaria with Bernard Richards 620–1
Christmas 615, 617, 641
1954
writes Solvable and Unsolvable
Problems article 623
trip to Blackpool with the Greenbaums, visits fortune teller 625
sends ‘Messages from the Unseen World’ postcards to Robin 645–8, 647
suicide 614–17
cremation 665
Turing, Alick (uncle) 4
Turing, Arthur (uncle) 4, 625
Turing, Ethel Sara (née Stoney) (mother) xii–xiii, 6–9, 22, 26, 153, 302, 553, 624
birth 6
moves to Dublin, attends Cheltenham Ladies College 7
returns to live with parents in India, takes up water-colour painting 7
meets Julius Turing 6, 7
takes Pacific route back to England from India 7
marries Julius in Dublin 7
returns to Coonoor, India 8
birth of John 8
conception of Alan 8
returns to England, birth of Alan 8–9
returns to India, Alan and John sent to live with the Wards in St Leonards 9
visits children in England, frustrated with Alan’s behaviour 10
braves U-boats to return to England, holidays in Scottish Highlands 10
decides to separate from Julius for three years to look after children 10
John sent to Hazelhurst school in Kent 10
lives with Alan in St Leonards, attends Anglican church 10
presses on with water-colour painting 10–11
Julius returns to England, holiday in Ullapool, Scotland 14
returns to India with Julius 14
returns to England and finds Alan unsociable, teaches him herself in London 14
trip to St Moritz 14
trips to Oxford and Wales 23
worries over Alan’s school options, Alan accepted by Sherborne School 26–7
proud of Alan’s progress 54
&n
bsp; writes to Mrs Morcom after death of Christopher 62, 65, 67
visits Mrs Morcom in London 63
holidays in Donegal 69
meets Alan at Waterloo Station 74
fruit-flies escape and infest house at Guildford 87
Alan asks her for teddy bear 114
sees Alan off at Southampton 147
pilgrimage to Palestine 166
relationship with Alan 192–3
visits Alan 303
Christmas 337
death of Julius 465
Alan reveals to her his sexuality 584
Alan visits for Christmas 615, 641
death of Alan 615–16, 619
cremation of Alan 665
writes Alan’s biography 667–70, 674
Turing, Fanny (née Boyd) (grandmother) 4, 5
Turing, Harvey (uncle) 4
Turing, Jean see Trustram Eve, Jean
Turing, John (17th-Century baronet) 3
Turing, John (brother) 17, 43, 302
birth 8
sent to Hazelhurst school in Kent 10
frustrated over responsibility for Alan 12–13
holiday in Ullapool, Scotland 14
returns to Hazelhurst 14
trip to St Moritz 14
attends Marlborough school 15
moves to Watton-at-Stone, Hertfordshire 20
trip to Rouen, France 20
spends Christmas in Dinard 25
urges parents not to send Alan to Marlborough 26
pursues career as solicitor 33
proud of Alan’s progress 54
holidays in Donegal 69
meets Alan at Waterloo Station 74
marries 145
asked by Alan to tell mother about his sexuality 584
death of Alan 615, 618–19
cremation of Alan 665
Turing, John Robert (grandfather) 4, 465, 615
Turing, Julius Mathison (father)
birth 5
graduates from Corpus Christi College, Oxford 5
joins Indian Civil Service, serves as Assistant Collector and Magistrate 5–6
promoted to Head Assistant Collector 6
meets Ethel 6, 7
takes Pacific route back to England from India 7
marries Ethel in Dublin 7
returns to India 8
birth of John 8
conception of Alan 8
returns to England, birth of Alan 8–9
returns to India, Alan and John sent to live with the Wards in St Leonards 9
braves U-boats to return to England, holidays in Scottish Highlands 10
decides to separate from Ethel for three years for sake of children 10
returns to India 10
returns to England, holiday in Ullapool, Scotland 14
transferred Madras to serve in Revenue Department 14
appointed Secretary to the Madras Government Development Department 14
trip to St Moritz 14
resigns from Indian Civil Service, lives as tax exile in Dinard, France 20
Alan Turing: The Enigma: The Book That Inspired the Film The Imitation Game Page 94