William was a world known writer, especially relating to the Soviet Union. As a journalist who had lived in Germany, Austria and the Soviet Union where he wrote 40 books about those nations, their history, their people and governments. He became a specialist especially in his writings on Soviet affairs.
He is mentioned on Wikipedia 
In the 1911 census William aged 2 lived in Woodford, Essex, with his parents. 
Arthur Edward Crankshaw Head M 34 Sefton Parish, Lancashire
Amy Beatrice Crankshaw Wife F 32 London Islington, London
William Edward Crankshaw Son M 2 Woodford Parish, Essex
Lily Smith Servant F 16 Walthamtow, Essex
Sarah Mitchell Servant F 14 Walthamtow, Essex
↑ "England and Wales Birth Registration Index, 1837-2008," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:2FK9-YVQ : 1 October 2014), William Edward Crankshaw, 1909; from "England & Wales Births, 1837-2006," database, findmypast (http://www.findmypast.com : 2012); citing Birth Registration, West Ham, Essex, England, citing General Register Office, Southport, England.
↑ CRANKSHAW, WILLIAM EDWARD (mother, BISHOP)
GRO Reference: 1909 M Quarter in WEST HAM Volume 04A Page 456
"England and Wales Census, 1911," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XWFK-YX5 : 2 August 2017), William Edward Crankshaw in household of Arthur Edward Crankshaw, Woodford, Woodford, Essex, England; from "1911 England and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing PRO RG 14, The National Archives of the UK, Kew, Surrey.