1
by Hawking
Published 1993
2
by Seale
Published 1973
3
4
by Smith
Published 1964
5
by Lewin
Published 1973
6
by Longford
Published 1974
7
by Churchill
Published 1967
8
by Churchill
Published 1959
9
by Coolidge
Published 1960
10
by Macmillan
Published 1973
11
by Terraine
Published 1980
12
by Wilson
Published 1966
13
by Taylor
Published 1972
14
by Clark
Published 1975
15
Published 1962
16
by Jamieson
Published 1971
17
Published 1965
18
by Hancock
Published 1962
19
by Cosgrave
Published 1974
20