The Seven-Per-Cent Solution

3 January 1935, Chesterfield, Derbyshire, England, UK

December 26, 1929 in Etterbeek, Belgium

22 May 1907, Dorking, Surrey, England, UK

1931, West Ham, London, England, UK

6 October 1932, Birmingham, Warwickshire, England, UK

8 July 1907, Dover, Kent, England, UK

26 April 1940, Islington, London, England, UK

5 March 1939, Hampstead, London, England, UK

21 October 1933, Whitechapel, London, England, UK

29 May 1928, Berlin, Germany

30 January 1937, Greenwich, London, England, UK

1930 in Dundee, Scotland, UK

29 August 1928, Bournemouth, Dorset, England, UK

5 March 1932, Czechoslovakia

23 April 1922, Henley-on-Thames, Oxfordshire, England, UK

January 25, 1945 in Santa Monica, California, USA

7 February 1904, Kensington, London, England, UK

22 November 1936, Nottingham, England, UK

11 April 1932, Cleveland, Ohio, USA